CA2170867A1 - Arrangement for image generation and/or reading - Google Patents
Arrangement for image generation and/or readingInfo
- Publication number
- CA2170867A1 CA2170867A1 CA002170867A CA2170867A CA2170867A1 CA 2170867 A1 CA2170867 A1 CA 2170867A1 CA 002170867 A CA002170867 A CA 002170867A CA 2170867 A CA2170867 A CA 2170867A CA 2170867 A1 CA2170867 A1 CA 2170867A1
- Authority
- CA
- Canada
- Prior art keywords
- light
- picture elements
- picture
- elements
- matrix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/48—Increasing resolution by shifting the sensor relative to the scene
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
- H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
- H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
Abstract
The present invention relates to an arrangement e.g. for image generation and/or reading comprising essentially in two dimensions arranged first and second light elements, control and addressing means for activation of light or picture elements wherein at least the first light elements are real and form a thin matrix and the second light elements form a denser matrix wherein the position of each first light element at a given time corresponds to the position of a second light element. The addressing means are spatially arranged or connected to at least each first elements and first as well as second light or picture elements are activated via said control and addressing means wherein activation of second light or picture elements which at the time are located at a distance from a first light or picture element which maximally corresponds to the distance between two adjacent first light or picture elements, via to said light element belonging addressing means through effective real or fictive displacement of the matrix formed by the first light or picture elements.
Description
;` 2~IQ~`~7`
W0 9510~932 JP~ l/;ih~ tm~77X
~RANG13ME~T FOR IMAGE GENER~ION ANI~/OR REAr1ING
TECEIN~Q~ FIELD
s The ~.1., i,.~lt,~n re:Late: ta an a~lyement e.y. ~or im~ge ge~a~on . a~d/o~ reA~in~ whi~h Go~price~ in 5~5~.Lial~ two dimf~n~io~a a~ra~e~l f~rst and seoond ligh~ ng ~d ad~ - ~ng means or activ~ting }ight or picture ~leme~t~. At 10 least the first light or pic~ elements a~e ~eal and form a ~hin ma~i~ ~ The ~d ele~ent~ ~on~ ~ m~ix ~Ih~ .h i~; ~ e-~s-r .
The i~ ion furth~r rel~es ~o a ai~;pl~y and t~ ~ de~ecting ~L~t for ~,;~A~n~ j~,e~, l~evices are knowrl in ~hE3 form of a displ~y or even i~ he form of ~e~n~s for e.g. optical, mag etical or electrio;~ dj~
In s~ ?~rrl ~ c~tion~ i~ can be required or be desir~le to have e.g. a ~rl~y ~rh~h ~s a ve~y small total area but wherein the 20 nun~er o~ plc~re- or ligh~ elemen~s howe~e~ is very h~gh, e g~ a ~i~play in the ~ o of a matriY ~i~h o~ example 1000 x 1000 light elements on a surfaae which may be 1 C:m2 0~ even ~ r. ~ e all li~ht elements, ~or e~cample lig~lid ~y~al ele~ents, re~uire indiv~ l addr~cq;ng and f~ !J etc. it ls ~rery hæ~d to ~ ce 2S a ~;imila~ matrix ~ue to the difficulties irl ;~chi ~vinSr individual ~dd~ s;~, fee~1n!J etc~ to ~ll the elements on su~ ~ small ar~.
GenerAll~ the prob~ems ~re the same for d~vi~e~ for im~ge s~enerat~on as well as or reAAirl~ and ~he difficulties in ~ddr~.~s1n~, fw~l~n~ etc:~ are Sir~ r indepe~Aon~ly if whethe~ it 30 is question abou~ ~r ar~an~ement a the one ar the other kind.
STATE; OF THE ART
35 ~n a number of know~ arrangements lin~3ar a~rangements or "ar;~ays"
are used, such as liyht elements or ljus sour~es arranged in one
W0 9510~932 JP~ l/;ih~ tm~77X
~RANG13ME~T FOR IMAGE GENER~ION ANI~/OR REAr1ING
TECEIN~Q~ FIELD
s The ~.1., i,.~lt,~n re:Late: ta an a~lyement e.y. ~or im~ge ge~a~on . a~d/o~ reA~in~ whi~h Go~price~ in 5~5~.Lial~ two dimf~n~io~a a~ra~e~l f~rst and seoond ligh~ ng ~d ad~ - ~ng means or activ~ting }ight or picture ~leme~t~. At 10 least the first light or pic~ elements a~e ~eal and form a ~hin ma~i~ ~ The ~d ele~ent~ ~on~ ~ m~ix ~Ih~ .h i~; ~ e-~s-r .
The i~ ion furth~r rel~es ~o a ai~;pl~y and t~ ~ de~ecting ~L~t for ~,;~A~n~ j~,e~, l~evices are knowrl in ~hE3 form of a displ~y or even i~ he form of ~e~n~s for e.g. optical, mag etical or electrio;~ dj~
In s~ ?~rrl ~ c~tion~ i~ can be required or be desir~le to have e.g. a ~rl~y ~rh~h ~s a ve~y small total area but wherein the 20 nun~er o~ plc~re- or ligh~ elemen~s howe~e~ is very h~gh, e g~ a ~i~play in the ~ o of a matriY ~i~h o~ example 1000 x 1000 light elements on a surfaae which may be 1 C:m2 0~ even ~ r. ~ e all li~ht elements, ~or e~cample lig~lid ~y~al ele~ents, re~uire indiv~ l addr~cq;ng and f~ !J etc. it ls ~rery hæ~d to ~ ce 2S a ~;imila~ matrix ~ue to the difficulties irl ;~chi ~vinSr individual ~dd~ s;~, fee~1n!J etc~ to ~ll the elements on su~ ~ small ar~.
GenerAll~ the prob~ems ~re the same for d~vi~e~ for im~ge s~enerat~on as well as or reAAirl~ and ~he difficulties in ~ddr~.~s1n~, fw~l~n~ etc:~ are Sir~ r indepe~Aon~ly if whethe~ it 30 is question abou~ ~r ar~an~ement a the one ar the other kind.
STATE; OF THE ART
35 ~n a number of know~ arrangements lin~3ar a~rangements or "ar;~ays"
are used, such as liyht elements or ljus sour~es arranged in one
- 2 1 ~0~7 ~VO 95~06932 . ~CTISEg4100778 or more ~ow~; ; ' ~h are ;wept so that a ma'crlx is forn~ed. I~ the total ~ea of ~he matrix ormed is to be ve~y small and at the same time ~h~ n~ of ligh~ elenents is to }~e h~gh, ~e 1 in~-A~ly ~ ~.s~ed lig~t el ~ ~ s must be very ~l~ns~ y ~ ~ ed why the S addre~s~r~g get~; ver~ d~ff~CUlt~ ~U~more the l~nQ~ de~ic~e of light elemRnts or light u~_ 1~ to b4 mc~d or swept a ~omE~aLiv~ly long dl~ ~ w~ h i~: a ~ns~de:~able drawback. ~s in ~ :Le~ds ~o that the sweep a:~;o ha~ to telke pla~a with a ~.v ~ ~ I,ivel~ ~igh -~ .
~ 40r e~ nple it ~s ne~A to mo~e a di3play in the form o~ a ma~rix of e.g. 1000 Y 1000 liguid crysW elemen~s and tl~e s~,~a~;e has to be ~aller than 1 Cm2~ wh:Lch ma~ be I~ f'ry in a nun~er o ~tio~s~ a pi~el size of 10 x 10 llm or ~ller is o~i~d, 16 whiG~ as ment~t~A ~ove is ver~ ~ fi~VJt, 1~ r~QeC'~hl~ at all ~o achie~e ll~nd1.rlg on zlddress~ and f~A~n~ p~}~l~s etc.
An e~ple of a ] i r~Q ?r a~ nent a~: refe~red to a~ov~ is shown in US-A-4 22~ 862. In this document a display uni~ comprise~ a ;~0 num~r of light sources, for example LED~, whi~.h are _T~ ~cd 1 ~n~ly. The lig~t ~ou~ces which are ~ l~n~ed in a row are o~ ted ver~;~ally, ~.e. in one direction or in one dime~s~n;
in order to provide a display. Acoo~ding to this ~ ment it is ~lso r~ibl~ to d~ the li~ht ~OULo~5 in a number of parallel5 rows~ Al~o ln thls caSe ~he li~h~ ele~en~s are ~los~3y arranged and te o~ a~e swept merely in one d~m~ or in one dir~tion~
The~eLhloug~ ~lso in ~is case the dis~nGe ~h~t the spots are ~o~ed will be long In US-A-4 ~34 773 ~ ~iniature-~ideo-displ~y is disclosed which ~mprises light e~itting elements a .~-~d in at leas~ one row, an a~plifying lens ~n~ a ~ibr~tin~ mirror. ~he light elements ~LED) are illuminated s~l~tively at diferent p~in~s durin~ the tr~nsJ~tion of the vibrating mir~or wherethrough rows of ~ ~re 35 projec~ on selec~ed spots o~ the ~irr~r so that a two dimens~onal ima~e is o~tained Ac;wrding to this do~u~nent the light emit~ing ~~ 2 1 7 0 ~ 6 7 ~C~ ~uw778 elements ~ay also be arranged in two or more ~ows, The intention ~wi~ch is that ~chose $~ ve tii ff~t ~1 o~s so ~at a wlour lmage ~an ~e provided~ This ~ocu~ent also de~c;ribes an ~ ~nç,ement ir~ Lon wi~h a~ opti~ system wherein ~ sweep n4t is real but -~~h~ved in an op~ y. ~180 ~1 1;hiq case, lf a s~ll A7~ t;h a ~ ~red, mu~:t 1;h~for~
- t~e l~t element~ be ve~ o~y e~ which is problematlc deren~ ~n~ on d~.~f~ ti~s in phy~ y ~4 ~ 5J ~d rnov;nt;i~g as w~ 1 as in addr~i~ and fA~'~ r t~e ~',~rly a~ d light 10 el~ment~;.
S7~ OF T~E I YVENTION
The o}~ with tl~e ~ ~ t ~,~ ion is to p~ovide an arr~ngen~ent 15 for i~age gene~a~ion zmd/or rea~ ~g a8 initially ~Lc.Le4 ~i~ ~or e~ple ~an be very ~11 and at I;he sa~e ffr~e h~ve ~ ~ry high ~esolut~on. It i~ also an objec~t with t~he i v~t,~an to provide an ~ra.-~ement which i~ y to ~.,~.~a and to ~nount. S ill ~.GI .Cl object with the pr~e.n~, invention is to provide ~ ~rrangeme~
20 wherein the slze ana the resol~ion are . no~ ited by the addrec~;n~ and f~di~g tec-hn1c to s~c,~ ~Le light el~ents o~
picture elemes~ts. Al~ll,e~ o~ with the inven~ion is provtde ~n O.L a"ycment whe~ein aepalal~e llsJht- or p~cture el~ment merely are ~i~r~A~, phy~ Al ly or vir~ally, a ve~ or~ distarlce. It is 25 also an o~e~t wi~h the i~ nLion to provide an a~z~ç~ nt ~rhi ch is not ~omplicated or oomplex. The ar~ang~nçnt i~ ~urthermore to ~a r~ h1~ and c:heap tt~ produ~e.
Those n$ well as other objec~s are achiev~ thr~u~h an arrangem~n~
30 whi~ aomprises sul~ lly in two dlmensions al~anged first and ~~ ~nd light ele~nents ~nd ~ol,~f~llin~, and addressing means ~or activ~tion of light- or pic:ture elen~ents. At leas~ the firt;t light-or pic~re ~7 1~ are real ~d form a t~n matr~x and the ~rn ligh~- or p:Lcture e~ e~ents fonn a AAn r- Qr' matrix . The
~ 40r e~ nple it ~s ne~A to mo~e a di3play in the form o~ a ma~rix of e.g. 1000 Y 1000 liguid crysW elemen~s and tl~e s~,~a~;e has to be ~aller than 1 Cm2~ wh:Lch ma~ be I~ f'ry in a nun~er o ~tio~s~ a pi~el size of 10 x 10 llm or ~ller is o~i~d, 16 whiG~ as ment~t~A ~ove is ver~ ~ fi~VJt, 1~ r~QeC'~hl~ at all ~o achie~e ll~nd1.rlg on zlddress~ and f~A~n~ p~}~l~s etc.
An e~ple of a ] i r~Q ?r a~ nent a~: refe~red to a~ov~ is shown in US-A-4 22~ 862. In this document a display uni~ comprise~ a ;~0 num~r of light sources, for example LED~, whi~.h are _T~ ~cd 1 ~n~ly. The lig~t ~ou~ces which are ~ l~n~ed in a row are o~ ted ver~;~ally, ~.e. in one direction or in one dime~s~n;
in order to provide a display. Acoo~ding to this ~ ment it is ~lso r~ibl~ to d~ the li~ht ~OULo~5 in a number of parallel5 rows~ Al~o ln thls caSe ~he li~h~ ele~en~s are ~los~3y arranged and te o~ a~e swept merely in one d~m~ or in one dir~tion~
The~eLhloug~ ~lso in ~is case the dis~nGe ~h~t the spots are ~o~ed will be long In US-A-4 ~34 773 ~ ~iniature-~ideo-displ~y is disclosed which ~mprises light e~itting elements a .~-~d in at leas~ one row, an a~plifying lens ~n~ a ~ibr~tin~ mirror. ~he light elements ~LED) are illuminated s~l~tively at diferent p~in~s durin~ the tr~nsJ~tion of the vibrating mir~or wherethrough rows of ~ ~re 35 projec~ on selec~ed spots o~ the ~irr~r so that a two dimens~onal ima~e is o~tained Ac;wrding to this do~u~nent the light emit~ing ~~ 2 1 7 0 ~ 6 7 ~C~ ~uw778 elements ~ay also be arranged in two or more ~ows, The intention ~wi~ch is that ~chose $~ ve tii ff~t ~1 o~s so ~at a wlour lmage ~an ~e provided~ This ~ocu~ent also de~c;ribes an ~ ~nç,ement ir~ Lon wi~h a~ opti~ system wherein ~ sweep n4t is real but -~~h~ved in an op~ y. ~180 ~1 1;hiq case, lf a s~ll A7~ t;h a ~ ~red, mu~:t 1;h~for~
- t~e l~t element~ be ve~ o~y e~ which is problematlc deren~ ~n~ on d~.~f~ ti~s in phy~ y ~4 ~ 5J ~d rnov;nt;i~g as w~ 1 as in addr~i~ and fA~'~ r t~e ~',~rly a~ d light 10 el~ment~;.
S7~ OF T~E I YVENTION
The o}~ with tl~e ~ ~ t ~,~ ion is to p~ovide an arr~ngen~ent 15 for i~age gene~a~ion zmd/or rea~ ~g a8 initially ~Lc.Le4 ~i~ ~or e~ple ~an be very ~11 and at I;he sa~e ffr~e h~ve ~ ~ry high ~esolut~on. It i~ also an objec~t with t~he i v~t,~an to provide an ~ra.-~ement which i~ y to ~.,~.~a and to ~nount. S ill ~.GI .Cl object with the pr~e.n~, invention is to provide ~ ~rrangeme~
20 wherein the slze ana the resol~ion are . no~ ited by the addrec~;n~ and f~di~g tec-hn1c to s~c,~ ~Le light el~ents o~
picture elemes~ts. Al~ll,e~ o~ with the inven~ion is provtde ~n O.L a"ycment whe~ein aepalal~e llsJht- or p~cture el~ment merely are ~i~r~A~, phy~ Al ly or vir~ally, a ve~ or~ distarlce. It is 25 also an o~e~t wi~h the i~ nLion to provide an a~z~ç~ nt ~rhi ch is not ~omplicated or oomplex. The ar~ang~nçnt i~ ~urthermore to ~a r~ h1~ and c:heap tt~ produ~e.
Those n$ well as other objec~s are achiev~ thr~u~h an arrangem~n~
30 whi~ aomprises sul~ lly in two dlmensions al~anged first and ~~ ~nd light ele~nents ~nd ~ol,~f~llin~, and addressing means ~or activ~tion of light- or pic:ture elen~ents. At leas~ the firt;t light-or pic~re ~7 1~ are real ~d form a t~n matr~x and the ~rn ligh~- or p:Lcture e~ e~ents fonn a AAn r- Qr' matrix . The
3~ ~d add~ eans are spat~ all~ p~ ided or c:onr~ ted only to each first light- or pic~t~re e1emen~s and fi~s~ as ~ell a~ se~ond 2 i 70~7 - Wo 95106932 ~CTISE9~0778 light- or pic~e elements are ~ontrolled and ao~ivated via said con~ and O~ ;; n~ means . Activation o~ se~ -A light- o~
pic~ elements t~kes place indirectly snd s~ oes~ ively du~in~r a ~ ~v~ t and only those Aeo~- d light- or piC~ e elements 5 which ~t a glven ti~e ( t:o ) are l~L-:d wl~l~n a di~ L~ fro~ a f:Lrst light- o:r pic~e element ~hich ma~nally 4CI~e3fY~A~ O a given di~ etween t~o ad~ac~t f~t ligh~- or picture elements sre act~vated vio to ~d fir~;t llght- or p~cture element w~~ n~ c~ YOUY1~ Si~l~A~
10 er~ ve~ ~al or i~i~re ~srl~cement of the by flr~t light- o~
pi~e element:s fos~ed D~ x in e~ t$~11y two c~i~ections or n~ n~ in su~h a way th~t in addition to all fir~;t, also all ~s~.v~l li~ht- or pic:ture elemen~;s ore tlctivated ~uring the time ~v~l ~t. A~v~.l~uS ~odlments are given ~y the 15 ~-h~ ~L~lstics of the ~ æ~ms.
Still ~ er ob~ ect with the in~ ion i$ to provide a disp~.ay .
A ~u~er ob~ea~ with the ~e~ nLion 1 s to pro~ride a dete~t~ng arrang~3ment fv~ n~ the object~; referred to ~n the 20 ~J.~j r~g, According to ~n ad~tant~ge-o~ e~bodiment the seoond liçlht- or p~cture elements a~e C-LLa--~ed suL,s~,l,ial~y in a squ~ ound the first lis7ht- or pic:~cure e~ em~nt wh~ he matri~c fonned by 2~ first light elements is di~l~ced in two dim~n~c~n~. According to one ~ odi nt the ~ light elements are fic~ive ~nd acti~ated ~o that the whole matrix surface is covered through physical or fictive simultaneo~s displacement of the ~hole mat~ix ~ormed by the fir~ light- or picture elements. According to an a~v~l~geous embodimen~ the whole ~atxix area is oo~ered by phy~ical displacemcnt, for example wi~h the use of piezo-elements,.in a magnetical way or using any other ~nown method Al~ern~tively the di~FJA~ement m~y be fi~tive. Par~cularly the a~angement may comprise an opt~cal system ~herein ~h~ displa~e~ent is achieved t~roug~ rotatable refle~tin~ means, ~irr~rs etc. ~c~ording to ~ne embodiment the first light- or p~cture elements ~ rise wo~ 2 i 7~3~7 P~-lJ~1~778 modulatable elements, par~culA~ he space~l matrix formed l:)y ~he :Lrst li~ht- or pi~e ele~ents is di~:p~ syncl~ ously with the mod~lation of ~e fixst light- or picture elements. Accordis~
~co one e~bodime~t t~he fir~ ight ele~ents compri8e liçrh~ ~ou~vc.O.
~; 13ven ~ore p~ r the light ~ ~mprise ~i~rht ~tting Q, LED~ ~inated lig~l$d ~sl,a~ elemes~ts et~. In one h~i~ t:he di~L~ ~e~ ad~ce~t ~ir~t liS~ht elem~nt~
abo~t 100 pm and t2~ a~ment of th~ ~ o~ matrix reac~es max~ly ~bout 100 ~ cording to one e~ ment ~r~
10 t~ total ~rea of the ~1 mat~i~c may ~c~ 2~0ut 1 cm~ where~
--~ng to an~t~r ~bodiment lt ~s r~ to print wh~le page~;
for example in the dir, n _~ n ~: 20 x 20 or ~0 x 30 ~n. Of course other di~en~i orl~ c~n as we~l ~e u~ed . According ~o ~.v~
e~ibo~i~ of ~ on the firs~t l~ght- or pi~ure el~nts ~5 comprise li~ht ael~ ~.a. Parffcv~ y may the spac:ed matrix fo~med by the fir~;t light elar~nts or p~c~Lu ~ el~ments be effec1:ivel~
di8~ A ln th~ plane of the m~ix ~ y with the ~n~
of the li~t ~sl~o~.
20 St:Lll f~rther may each first light- or pi~t:ure e} ement ~e ph~i~ y div~ded to comprise ~irst ll~ht- or pic~ure elements and sul,..La~,~ially adjacent ~ light~ or pictllre elements and in that ~ach fi~st light- o~ picture element and Lhe~4~0 ~elong~ng ~o.~ light- or p~cture ele~ent ~e fed in a rea~ way so that a 2~ ~cving light so~l~e with a vari~ble ~ ~ensity is obt~i nP~ . The f~oA~n~ can be effected thr~ugh ~ sweeping signal which is co~mon or all irst light- ~r picture eleme~ts. According to a parti~u~ar em~odiment the arrangement is so ~ormed ~hat the whole sweep ~to W ~_l the whole surfaee) is carried out du~ he time ~nter~al ~t and takes about 1/~0 s~
According ~o one erhn~iment the arrangement ~orms a displ2y whereas it accor~ing to ~~ em~d lmen~ forms a ~etector for image r~æ~ng, an ima~e reader. Aocording to further emho~jment~ ~he 3~ arrangement is used in a ~a~era, a c~py-~achine etc.
WO 9S/~6932 2 1 7 0 8 ~ 7 r~ i~JlW77~
E3RIEF DESCRIPTION OF T~IE DR~Wl NG~
The i~,~,~,1,~on will in the fol ln~7ing b~ ~ur~her desar$bed llnder e:l~ to th~ a~companying drawinçrs in ~n ~r~ ~n5~1;0ry a~ld by S means limltlnsJ way, wherei.n Flg 1 gOE~erally illu~l ~a~ a mat~ c fonned by cells with fir6t ~nd ~Y~ llght-, or picture elemen~s, 0 Fig la illu ~ n e~ple of a sweep in a -oll with a fir~t light- or pict-ure ele~ent and the~to ~1 ~n~ ~J- ~J
light- ~r picture ele~ents, Fi~ lb ~ n alternat:ive e~bod~ ~nen~ o a swe~p in a cell wit~h fir~t and ~ ight- ox picture elelnents, ~ig 1~ illustr~es a f~Ll~- ~ ex~le C)f how a gw~ep aan ~e effected in a ~el1 with fir~t and ~h~- o~
pi~ture elements, Fig 2 illu~l~ an ar~-~y~t ~sed on physia~l di~plac:e~3nt o~ the ma~rix, Fig 3a illu~ca~ y~n0nt wherein the d~rl~ment of 2S t~he ~atri~ ~tive ~ r'-~in the ~"f~ngemen~
comp~lses an optical ~st~m, Fig 3b illustrates a secor~ odimen~ of the a ~ ycu~lt a~c:ordins~ to Fig 3a wi~h a differe~ optic~ ys~elu and Fig 4 illustrates an embodiment wherein the ~ond ligh t- or picture elemen~ ~re rea~ and ylou~ise h~lnn~ to a first light- or pictu~e element~
DETAIr~n DESC~IPTION OF l'HE INVEt~TION
W095WK9~2 21 70867 ~Cl/~h~
Fig 1 illus~rates the pr1nc~p~ 9 of an arrangement 100 comprising fi~st and second light- or pi4ture elements arranged 3U~ Lially in ~wo di~ci~s. The light- or p~cture elements are -~u.~ng ~o tbe shown emhod~nt a~ ~a~ r4g~7~rly~ The ligh~- or pict~se 5 el~n~s ~ be s~d to ~or~, ~r ~ be ~1 in dif~ oells 5~ whe~ each c~ a flrst ll$ht e~ement 24 ,~ .1, .... 5~ a r~mb~ ~f ~ A elem~t~ 31.~ 1. ..., S) ;k,l 1~ 1.1.
2 3 ) ~hiC~ oan be ~aid ~o belong to or ~p~,~d o~ the ~i~s~ ht element ~ . In Fi~ 1 ~s s~h~t~ y lllu~-,a-_~ a matr$x ormQd ~0 by dirre~ L cells 11,~ wh~reas ~n Fig~ la to lc diLf~ example~
are ~hown illu6~ ing how a ~ 1, for example 1~,. oan be bu~
and how the ~weep can be e~fe~ted wit ~ the re~ lve cell. ~$~h a sweep i~ ~t both a ~eal ~weep, ~ut also a ~erial a~tiv~tion acoord~n~ to the e bcdic-nt as ~llu~t~a~ed ~n Fig 4. The ~
1~ light-- or p~G~ure elemen~4 3~ ~ k l w~ch al~o can ~e sa~d tD be d~ e~ light- or picture elements are according to the ~ ~d e~bodiment regularl~ A~,~d ~ithin the cell. It co~ld also be r~ible to a~ ~ tho~e in ~ non-regul~r way withln the cel~. HOwever, according ~o an a~vanLageous embod~ment the 20 dir~e~ cells fo ~ g ~he matrix a~e ~o built that to each cell o~ing light- or picture elements are ~L~nged in the sa~e way in ~11 ~he oells so th~t a common ~weep (~ee a~ove) of the whole matrix c~ e ~ried out, i~e. that it ~n be ~ either in a real or in ~ fict~ve wa~ simult~neously and uniformly. Aoco~ding to the inven~ion a~ s~ng means or ~dd~e~sj~g devices as well f~ed;~- ~nd ~odulatlon means are merely arranged ~o each firs~
llght- or pi~ure element 2~, or ~ so ~ main element. The mat~i~ which i5 formed by the first ligh~- o~ picture ele~ents 21~
is a comparatively thin matrix where~ the matrix which i~ formed hy ~h~ sec~n~ ~ight- or piq~ure elemen~s 3~ forms a much d~e~
matrix. AS referred ~o a~ave ~he addre~ng me~nQ as well aQ.means for ~in~ and modulation are only ~n~-ted ~o each fi~st li~ht-or picture el~ e ~ 2~.
3~ U~r~e~ both ~irst and se~nd light- or picture elements are a~ti~ated via said means wh~ch in the ~ollc~r$n~ some~imes merely ~og~932 21 7~ PC-l/S~,~.J~
are de~L~ ad~e~æ~g mean~ even if they al~o may comprise means for f~ Ai ~g and r~ci hl y mod1ul~ion ~nd regulatio~ whereupon the f~rst light- or picture elements ;~ are activated dire~tl3~ whF~ s ht- or pi~ture elements 3~ are acti~ated S in~ly vi~ ~e f~rst light- or pia~e elemen1;s 2~ In F~g 1 a m~ illuo ~d wl~ch oonq~ ~e~ 25 oell~ wlth ~11-Jeth~r g l ~ ght- o~ plcture elements ln each Gell . Of the~;e g light- or pic:tu~e elemenl:s one light- or picture element *onn~; a 2;0 ~ll~d f~rst ~lght- or plcture eleme~t ~,~ wl~eas the other 8 lO form so ~s~l~d ~?~J~ ht- or pi~ture elem4nt~ 3~ "1 ~hiCh ~o~
e fir~t light- or picttlre element 2~ f the ~ell. In the ~h ~ n e ~ ment the fir~;t light- or p$cture ele~ent ;~
o~ ~,ged ~n the ~lt~ of each re~ ive cell 1". In some ca~es it i~ advantageous to have ~ ~ ~vely low ~swe~r~ frequenc~
1~ wh~ch, diLr~ ly rom ln a telet~s~on (one liyl.~ ~ou~e), easlly can be ~btAined with a matrix: i for examp~e the ~we~n~ mo~ement i~ ~ox.-~rd ~nd ~ ~L- ~in~ the frequency for the forward- and back m~ve~ent will be h~h~r than ~he total ~weep frequency ~0 The mo~ulation o~ the light- or pictu~e elements is ob~ined in ~he time domain, during the inte~val in ~h ~he SWQ~p is ~arried out The ~w~eplng movement is according to an ad~ agao~ em~odiment uni$orm in on~ direct~on, i.e. it is not ~e~A~ thst ~or ex~ple the ~ight spot stops etc. Thus the movement can be continuous and unifo~m (~f. line de~lection in an o~dinary TV)~ A~ording ~o al$erna~i~e embodiment~ it is also po~s~hle t~ have a di~r ~chopped n movement.
~0 In Fig la is illus~rated a cell 11l as that ~st descri~ed in Fi~
1 with ~ light- or ~icture elements, i.e. a fir~t light- or pi. ~u~a 22~z and 8 ~ n~ lisht- or pic~ure elements 31,1 k.1(k.1~.Z.3)~
In th~ shown embDdiment the fir~t li~ht- or pia~e ~ nt ~2 2 iS
~r~anged in the ~enter the ccll whereas the seoond light- o~
pict~re elemen~s are arr~nged in ~ ~egul~r w~y ~round t~e first light- ~r pictNre elemen~. In the figures arrow~ illustrate an - wo~g32 217~i~67 P~ 778 ex~mple of how a sweep c~ be efec:ted ~cross the cell. A c:omplete sweep thus means that eac~ first ligh~- or pic~ure ele~ent is swept and r~ es ~), all positions fo~ the '-G~ igh~- or plcture elements b~?lQn~n~ to the~e fi~8t li~ht- or pi¢ture ele~nent~ The 5 ~d~ g D~ are ~ l~l only to th~ fi~st light-or pi~l,~e eleme~t (~ot ~ coording to ~lif~ L e~dl~ts ~a~ either the w~wle ~atrl~t ~e df~r~ whiC:h will ~e furl;her des~ribed below) or ~he ~.~r,g~ment ¢~n ~e comprised in aul aptioal Les~l ~he~n the ~ A~.el~leI1t is n4t r~ but ficti~e ~nd 10 ~3~i~ved with l;he assi~t~n~ of r~fl~y means, ~irrc~r~ etc~ Thi~:
e~i~nt wlll ~so be fur Lher de~aribed }~e}ow. I~ ~t:h these enbodl~ts t~e ~ d light- or picl:ure elements a~ f~ctive~
ding to a *hird embod~ment (al~o t~is fuYU~_~ deqc~bed in the win~) are however slso the ~o-~J light- c~r p~c~:ure el~nPnts 15 re~l but they are ~ J~ng on tho fir~:l; llght- ~r pio~ur~ element.
In Fig 1~ is illus~rated a ~ A examp~e o~ a cell 1~ i~st and ~C~r~d pic~e elements and ho~ a swe~ri n~ movcament can be ~ffecl;ed ~ ively illu ~J c~,ed with ~ n the fi~ure. ~lso ~0 in t~ e~odiment the firs~ t- or pioture elemen~ 22 2 ~e Jn~ in the w~ lc fi~:~l ly illustr~tes in ~n strativ~ wa~ a furthe~ ent o~ how a cell c~ uil~.
This ~odi~e:r~t differ. f~ in that ~he first ligh~
el~ment ~ 3 iS not ~ ed centrally in the cell but in an~her 5 ~y, in the F~ embod~nent in a ~v~ . Of C:ourse it could ~lso be ~ ~nge-l somewhere else s~n~e ~;his does not influence the P~in~irl~ of the inventic~n but merely gives diff~arent technic:al olutions. The displacements or the swe~p~ mc~ements may also be diagonal or similQr, the essentisl bein~ that all po~itions, 1.e~ also ~he se~ond light- or pictu~e elements whi~h are not directly addre~ed and ed etc. arA ~o~ered.
~c¢Drdin~ to the invention the li~ht- or picture elements ma~
3S compri~e light ~ulces. A ~ be~ of di~ferent light so~r~es are of cour~e poss~ble among whioh among others can ~e me~ione~ so c~lled - W0~5~0G932 PcTn~E;94~00778 lis~ht-emi~ting ~; ~ s, LE~, liquid ~yS ~l ~ells with one or more real light so~ces, multi~olouI~ systems etc:. Th~ light or picture ele~en~cs may also co~?rise de~G~ ~ ,a or ~ight detectors .
5 In the ~ollowing ~ given a co~parison ~ ,reer~ a 3~r~ n~
an~ a s~p~ ~hin ~atr~ ~w~ bo t~he i~.,w.llorl. The li~ht or pi~e elements ~ hereln d .~51~d l~ght elements for rP~ of ~ plicJ ty. For rc.~ ; of siD~rl icity ~;ho wanted ~ r ~e~301utlon, i~e. the number of line~, ls g~ tc~ be N whereas the de~i~e4 10 size, i.e. t~e side of a ~;quare, ls ~ to be L. F~ a ~ r ZL~X is t;hen regui~ed N lls~ht elemen~s wh~d a~ 1 ha~e to be ~iq~ ~A for ~a~cimum disL~n;e L. T~ey ~ill then mov~d with a speed Lf~t.
l!j Wi,th Zl ~in matrix (~:ording to the :4~ on) with n~ fi~st ligh~
elements o~ light ~ou~- e~ery light ~e nes~C to ~e di~ cecl to N2/nZ di~Le~ positions~ and a distan~:e in x- as well as y-dir ~ ion, whioh i3 L~n J;nd it moves wlth a spee~ of L~N~n~t. For the l~nt~-~ arr~e~ent the phy8ical di~lA~ce between two adjac~nt li~ht ~vu-c~s w~ll be ~/N whereas the physical dlstance between ~wo ad~-acent light ele~ents in the thin ~atrix L/n is considerably sl~ .. The mAximum ~ ~ment or ~he 11~ arra~ will ~e L
wherea~ the maxi~um displacement for the th~n matrix, i,e. light elements co~prised thereby, w~ll be ~2/n. If the total number of light sou~ces, for example ~, i~ gleater ~han N, i.e. the number of light sources in the 1 i ne~r array, ~he ~elocity will be lower for the thin matrix, namely L-N/nl~t aS comp~ed with ~f~t (for the 3ine~ ~rrangement). If ~urther the veloci~y is lower fo~ the thin matrix, lower power will ~e ~equired fxom e~h light source in order to xeach a ~iven tota~ power~
In the following the dif~eren~ em~odi~ents will be further described. In F~g 2 an a~ ement 10 is illustrate~ in whi~h the fir~t light- or picture e~elen~s are real an~ form a ~hin matrix whereas the second light- or pictu~e elemen~s are fi4tive and form a denser ~atrix. For r~sq~c of o~viousne~s the elements are not W09~g32 2 1 7 Q 8 6 7 ~7$ve~ rei~erence si~ns i.n Fig 2; ~ or ~am~le Fig 1, Ad~ o mea~s or devices as well ~s means ~or fenA~ng ar~d t~ o~ etc ~s m~t~ ove are spatially ar.r~ged only to each ~irst light- o:r pict~e ele~en~ and fir~t a~; well as ~f ~A
5 l~ght--or pi~e eleme~ts are WtiYa~Ced Yia said ~*~s w~re~n the aot~vation o~ the ~ J ~ i5Jht- or p~c:ture elements is ~:L~0~L~l ~dly dw~ the time i~ Lv~ which ea~h ce:l..l withi~ 7y ls ~ u~ to an ef~ e, n3al "rl30ement and ~ in!l whi~h the whole m~ix, i~e. each ~11 10 ~ tely, is c~kpletely ~o~ Fig 2 ~1 7 ~ aL~s ~ovz~ble arr~ m ~t 100 for example i~o~i~g a ~ rl:~Y wh~ ed ~n a fi ~ ~ramf~ 6 . The ~ le d~ ; s~ra~ed in 'che ~i~ed ~ra~e 6 ~v-l9l~ attr.~;~ ~ 7, 7; 8, 8 ~iCh are ~o ormed th~t the frAm~ ~-v.~ p~ac~ln~ ea~ Y o moved in t~o direct~ons lS so th~t t~e ~r~l~ ~atri~c i~ ~.LLed. ~h~ ~ALI~--r~ ;n~ mearu3 7, 7: 8, 8 pro~ide ~or hori~onta~ 7, 7 ~nd ~tic~al 8, A attac:hment. The A~ment isl t~ o small that it.max~ally U~ to the disl,~e be~ , ttoo adj~ fir~;t light- or picture ele~ ts, c Fig 1. The /1 i ~p~ i nlJ means g can be ~ormed in ~ number of 20 di~ . way~; ~nd wl~ d$~feren~ ~hr~i r~ solutions . ~x~mples L ~re piezo-elements or p~ezo-dev~c:es ~rranged in ~ ton wit;h t~he ~ttz~oh~n~ mea~ 7, 7; 8, ~. The ~ sGin~ ~eans 9 may of e ~lso pro~v~le for a ~ rl~.ement in the ~o~n~ of a tran~verse ~ovement, i.e. a ~ovement pa~allel With an ~djacent edge or 25 slmi~ar. The displac~ ay al~3o ~e achie~ed in a ~ her o~ o~her ways, ~or example magnetjr-Ally~ wi~h el~ ,r~J.na~nets or ~Tia magneto~2triction etc~ The di ~pl :~; ng ~eans are in the shown enbodi~ent so a~:xan~ed that two means provide for vert~ cal displ Ar~n~ent whereas two pr~vide for horizontal displac:~m~nt. ~he 30 allan~ment may also comp~ise so called position ~ 5~ ng means ~-hi~h not are shown since t~ey as to their~ . unct~on and ~orm may be of any knowxl lcind The ~ddre~ n~ ~S wel3~ as addrt~ means as well as means for f~edin~ and mod~l~tion e~c are also known per se and C2~n be orm~d in ~ny arbitrary way p~o~ided ~hat only each 3S ~irst light- or plc:tllre ~lement is di~ectly connected~
wo ~ 2 1 7 0 8 6 7 ~ roo7~
1~
In the en~ t desc~i~ed above the ;3~ d~ ment is tbus d~spla~ed phys~ y all ove~ t:he ma~r x. In Fig 3a an ar a~ement will be d~cribed wherein the ~ rl ~ ment is fic:tive and w~ere~n the ;~ ~ng~ment is ~prised in ~n op~ioal ~D ~ In Fig 3a the 5 3i ~1 ~cement is ~h~ ~-ved ~a a ~irror ~3 wh:~cll can be tu~ned or ~ sL~Led in t~o dir~o~s and thi~ ~:an of r~.J. ~Q also be ~J~ie~
out $n a n~er of ~ ~~r~ way~ and :Ln Flg 3h ~LCL example i~
cfl of ~he ~nge~ent 30 co~rised in a~ opticzal S~ot 1~ ca~p~i~r~g t~o ~irr~rs 14, 15. The ~yæment n~ay of ~5 10 also form pa~ of a f~ ng sy~em oompr$sinSJ l~n~ , pr~ etc.
he di~rl~ments of the m~ e very ~mall ~;ho8e aarl be ~Wle, for e~ nple via to~gion, I:lut ~lso in thls case is ~ al that ~:he a~ nsr ~f~ ~"n4dulation ~c) onl~
i~ ps ~ridea -co the ~irs~ picture- or light el~nt~ and that ~he 15 fia~:ive ~l~r~ ~t is ~o s~l ~at it ma~c~mally w.~ yO~C 't:O
a dia~ ~ (in one dire~tion or dim~-ns~ ) whic~ r~;~ond~3 to the di~ ~e l~et _ln two adj acent l~ ght- or pic~e elemen~s ( see Fi~
1) ~nd that ~.~s~o~gll the whole ~atrix is c~overed.
20 In Fi~ 4 a r~ L~ is shown ~here:Ln the ~ light-or pictu~e ele~ents 31.1 k.1 a~e ~eal ~d t~ ye~ ln y~ p belonging to a ~irst light- or plcture e~ement 2~,1 The e~ho~3~ment illU~ in Fig~ l, la-lc 18 alsc~ 4pplC~ .iate in ~ S case with the diffe~ence that the ~ec~ond light- o~ picture elem~ are real.
~5 In thls c:ase sre ~hus bot:h f~rst and s~13conA light- o:~ pi cture eleme~nts real ~ntl for r~ of sin~ clt~ is c~ne of the second liyh~- o~ picture elements assumed to be ~ F.f~onAsd by ~he first light- or picture element or ~50 called main element on whi~h the others ~ 1, The light- o~ picture elemen~g may thus be seen as 30 p~sically divided whe:rein eac:h first light- or plcture element is divided for ~Ya~ e into ~ num~er of ~ te ligh~- o~ picture elements ~rh~ are fed serial~y via the c:orrespo~din~ first light:-or picture ele~en~ so that a r~o~in~ ~ight ..~ wi~h a varia~le intensity i8 obt~;ne~. The addre~sing ~l~d f~ in51 i5 only pro~rided 35 to eac:h flrst light- or picture element. The ~ddr~s~ng ~it~in ea~
cell com~rising ~ first t ight- or picture element ar~d a r~llmh~-r of .
wo ~32 2 1 7 0 ~ 6 7 PC~ 0778 ~n~-nt ~er~n~9 ligh~- or ~i~ture ele~ents i~ rx~ied out ir~ the ti~domain and the sweeE~ng sl~ is co~amon for ~11 ~:ells ~prised by the ~atri 5 Ac~ ~g to Fig 4 the fiweep is C~ 1~d ~imu~.tz~ ol~r a~u3.
com~o~ly ~y the first light~ r p~ cture e3 ement wbere~s ~he ~ity ~ati~ 3 ~,~aYaL~ly .;o.,L~ o~ Ibut ~Xewi~e ~ d to eac~ first li5j~ht- or picture element). In the cR~e o~
deL~;La~ reg~sL.~ on ~s ra~evant ins~e~d of ~.,l.e-~:Lty 10 re~ulat~an. F~6~, modul~tion e~ is not fu~er e~empllfied 1nC~ thiS C~aI~ be done in w4ys which are ~nown per 2;e. It ls Llal ~hat addre~Qi~ and swe~p i~ carr$ed out siw.ul~neou~ly for all fir~t l~ght- or pi~e ele~ent~ wherein to ~c~ firtit ligh~- or picture element ~lor~7t~sJ (real) ~u~ ligllt- o~ piature 15 elemen~s are se~ lly ~-- -C~ eLo irl a ~ay which is h~n~ per ~;e. M~~ tion, t~he regulat~o~ of ~he intenslty ~;~nd ~ ~ther f~ ions~ a~e or ~an be co~L~olled ~eparately. ~n Fi.~ 4 iS
fllv~trated ~hat ~he int~n~i~ for ~e ligl~t- o~ pic:ture ele~aen~s a~e ~onL~olled separately as a fun¢~ion of time whereas ~illumination~ or sweep as men~ls~ above i~ effec*ed ,.~.~sly a~ far ~ the ~rirs~ light- or plct~e elements are ~ ~ned and sequsntinlly within each rc-~ec~iue ~el~. Rn arrow bet~e~n the intens~*y ~egul~t~on dev~ce/~egis~ ion and a ~weep w-~t~ul circui~ indicates tha~ they ~re sy~ 7~.
As mentioned above ma~ according to one embodiment the light- or picture element comprise for example light ~ouL-~es whi~h ~n be said to form modul~a~le lighL~ts~ These ar~ displaced per~odically in ~uc~ a way that each li~ht~p~t will take ~ n 30 number o~ posit~ ons~ for example 100, ( th~s howe~er me~ely gives an exa~ple and it is no~ intended t~ ha~e any limiting eff~ct), which can be arranged regula~ly around the ~est posi~ions" or the der~d~t light- o~ p~c~u~e element. ~he ~e~ult will then be ~hat ~ matrix is created with 100 tlmes mo~e pixel than the re~ be~
of liyl~Ots. This can f~r example be se~n a~ if each separate lightspot is re~l~ced by a very small ~uad~ati~ lO~llnes Q ~hod--- W0 ~6932 ~ 2 1 7 0 8 6 7 ~ k~ C~18 ray-t~leviSion-pict~s~e tube. Thus the physical disp~ . 1, 0~ tl~e 3 liy~L~ are ~e~ small. As an esa~nple ~s given a ~rl:~Y
in the for~ of a ~atrix o~ lOOO x 1000 liqllid cry~L~l elemen~s ~nd ~i~h a ~ ;urfaoe of a~out 1 cm2~ This woul~ mean a p~ce~*;7~ of 5 }O x 10 llm. ln the thin ~atr~c a~-~rding to the ~ r~.Uon t~e di~ L~ ~aL~ he light-spots ~:ould ~ ;3~0Ut 100 w~l~ough the ~.A~3~sa ~y ~aximum ~ r~ ment max~ally would ~, about 100 llm. If t~e mat~ix is ~all it can as al~eady ere~ to ;3bave l~ rl~A phy~~ y, ~or eY~ wiffl the use 10 of piezo-element~ . If it i ns~ad forms part o~ an optical proj~ or example lma~e formin$l system, the optlcal axes can ins~ead be ~le~ted, for example with t~ 3e of rotat~ble mirxors as n~nt~oned ~e. The deflec~ion angle will be ~rery small, in ~ome ~ ;maller than 1/100 of a rad~ see t:he ~e men~S nu~r$c:a1 ex~ple ) whereupon the l~a~ion of the n~ rrors c:~n be 7 on to~sion~
The ~ em~ant ~c~ ording ~o the ; ~ l,ion c:an be orm~d as a ~ispl~r as weli a~ it can be u~;ed in printers or for optical, ma~netical or electrical r~A~in3 cf $wo dime~qion~ Ytorages or picture~ etc. The a~ngement can al~o;form a de~ o for im~ge ~e~in~ or form pa~t of a ca~era o~ a copy~ , o~ for PY~ e an aL~ly~P-nt for production of pa~xns with the uge of lase~
m~c~h i ni n~
Th~ou~h ~he inve~tion it is for example possible to provide ~eproduction w$th a more ~r less good sharpness. One e~ e is that if a good ~esolu~ion is alread~ p~esent, whiqh however is inte~ to ~e somewhat further increased, then it is possible to 30 have a great number of cells (for example about 600 x 600 ) wit~
only 4 light/pict~re element~ in each c:ell. Another e~ can be t~}cen to ~e fou~ TV-appa~tuses ~ine~ with 4 cells with 600 x 600 pic~ure el~ s in each, essentially c~ ~ _.ding ~o ~v, I~ is l~ereby pc~sl ble ~o go from a normal resolution t~ resolutiorl for 35 HDTV~ At receptiorl of zm ordinary TV-sigrlal the swee~ is omitted and the c:ell will li~ht as one single unit~
WO95/0~932 2 1 7 Q g 6 7 r li. ~54/007~
1~
~rhe invention is not limited to the sho~m e~ ent~; but can ~e ~ree~y va~ied ~ithin the scope of the clai~;. For ~Y:~rle ~he size of the ar~y.e ~-t, ~spl~y o~ anythin~ ~lse, can taXe ~ y d$~fer~nt valu~s, t:he number of aells a well as t~e nu~er of 5 el~nts ln ~he c~lls '~8 not ~i~ed to arl~ part~ n~ nunlbers, the ~e~ent ~ay fo~ e~qple be v~y ~ ut ~t can al~;o acoording to al~,la~Live em~odiment~ be used for prin~ng Of wl~ole pa~e~ o about tens of cm (for exa~le ao x ~o ~) etc. The ~ovements of ~he ll~a~iX C~ 180 be pro~ided ~n a nl2~ of ~lireY~L w~ys as well 10 a~ adJaaent spo~s can mean diagonal~ ~l ~y~l elsments e~c~ A
co~lete sweep whic~ s the whole matrix qr ea~ l c~
~atriY respectivel~ way need dirfer~L time a!3 well as circ:uits, ,c~ n~J etc ~an be formed in a nu~er af d~Lf~l~llL way;~
lS
pic~ elements t~kes place indirectly snd s~ oes~ ively du~in~r a ~ ~v~ t and only those Aeo~- d light- or piC~ e elements 5 which ~t a glven ti~e ( t:o ) are l~L-:d wl~l~n a di~ L~ fro~ a f:Lrst light- o:r pic~e element ~hich ma~nally 4CI~e3fY~A~ O a given di~ etween t~o ad~ac~t f~t ligh~- or picture elements sre act~vated vio to ~d fir~;t llght- or p~cture element w~~ n~ c~ YOUY1~ Si~l~A~
10 er~ ve~ ~al or i~i~re ~srl~cement of the by flr~t light- o~
pi~e element:s fos~ed D~ x in e~ t$~11y two c~i~ections or n~ n~ in su~h a way th~t in addition to all fir~;t, also all ~s~.v~l li~ht- or pic:ture elemen~;s ore tlctivated ~uring the time ~v~l ~t. A~v~.l~uS ~odlments are given ~y the 15 ~-h~ ~L~lstics of the ~ æ~ms.
Still ~ er ob~ ect with the in~ ion i$ to provide a disp~.ay .
A ~u~er ob~ea~ with the ~e~ nLion 1 s to pro~ride a dete~t~ng arrang~3ment fv~ n~ the object~; referred to ~n the 20 ~J.~j r~g, According to ~n ad~tant~ge-o~ e~bodiment the seoond liçlht- or p~cture elements a~e C-LLa--~ed suL,s~,l,ial~y in a squ~ ound the first lis7ht- or pic:~cure e~ em~nt wh~ he matri~c fonned by 2~ first light elements is di~l~ced in two dim~n~c~n~. According to one ~ odi nt the ~ light elements are fic~ive ~nd acti~ated ~o that the whole matrix surface is covered through physical or fictive simultaneo~s displacement of the ~hole mat~ix ~ormed by the fir~ light- or picture elements. According to an a~v~l~geous embodimen~ the whole ~atxix area is oo~ered by phy~ical displacemcnt, for example wi~h the use of piezo-elements,.in a magnetical way or using any other ~nown method Al~ern~tively the di~FJA~ement m~y be fi~tive. Par~cularly the a~angement may comprise an opt~cal system ~herein ~h~ displa~e~ent is achieved t~roug~ rotatable refle~tin~ means, ~irr~rs etc. ~c~ording to ~ne embodiment the first light- or p~cture elements ~ rise wo~ 2 i 7~3~7 P~-lJ~1~778 modulatable elements, par~culA~ he space~l matrix formed l:)y ~he :Lrst li~ht- or pi~e ele~ents is di~:p~ syncl~ ously with the mod~lation of ~e fixst light- or picture elements. Accordis~
~co one e~bodime~t t~he fir~ ight ele~ents compri8e liçrh~ ~ou~vc.O.
~; 13ven ~ore p~ r the light ~ ~mprise ~i~rht ~tting Q, LED~ ~inated lig~l$d ~sl,a~ elemes~ts et~. In one h~i~ t:he di~L~ ~e~ ad~ce~t ~ir~t liS~ht elem~nt~
abo~t 100 pm and t2~ a~ment of th~ ~ o~ matrix reac~es max~ly ~bout 100 ~ cording to one e~ ment ~r~
10 t~ total ~rea of the ~1 mat~i~c may ~c~ 2~0ut 1 cm~ where~
--~ng to an~t~r ~bodiment lt ~s r~ to print wh~le page~;
for example in the dir, n _~ n ~: 20 x 20 or ~0 x 30 ~n. Of course other di~en~i orl~ c~n as we~l ~e u~ed . According ~o ~.v~
e~ibo~i~ of ~ on the firs~t l~ght- or pi~ure el~nts ~5 comprise li~ht ael~ ~.a. Parffcv~ y may the spac:ed matrix fo~med by the fir~;t light elar~nts or p~c~Lu ~ el~ments be effec1:ivel~
di8~ A ln th~ plane of the m~ix ~ y with the ~n~
of the li~t ~sl~o~.
20 St:Lll f~rther may each first light- or pi~t:ure e} ement ~e ph~i~ y div~ded to comprise ~irst ll~ht- or pic~ure elements and sul,..La~,~ially adjacent ~ light~ or pictllre elements and in that ~ach fi~st light- o~ picture element and Lhe~4~0 ~elong~ng ~o.~ light- or p~cture ele~ent ~e fed in a rea~ way so that a 2~ ~cving light so~l~e with a vari~ble ~ ~ensity is obt~i nP~ . The f~oA~n~ can be effected thr~ugh ~ sweeping signal which is co~mon or all irst light- ~r picture eleme~ts. According to a parti~u~ar em~odiment the arrangement is so ~ormed ~hat the whole sweep ~to W ~_l the whole surfaee) is carried out du~ he time ~nter~al ~t and takes about 1/~0 s~
According ~o one erhn~iment the arrangement ~orms a displ2y whereas it accor~ing to ~~ em~d lmen~ forms a ~etector for image r~æ~ng, an ima~e reader. Aocording to further emho~jment~ ~he 3~ arrangement is used in a ~a~era, a c~py-~achine etc.
WO 9S/~6932 2 1 7 0 8 ~ 7 r~ i~JlW77~
E3RIEF DESCRIPTION OF T~IE DR~Wl NG~
The i~,~,~,1,~on will in the fol ln~7ing b~ ~ur~her desar$bed llnder e:l~ to th~ a~companying drawinçrs in ~n ~r~ ~n5~1;0ry a~ld by S means limltlnsJ way, wherei.n Flg 1 gOE~erally illu~l ~a~ a mat~ c fonned by cells with fir6t ~nd ~Y~ llght-, or picture elemen~s, 0 Fig la illu ~ n e~ple of a sweep in a -oll with a fir~t light- or pict-ure ele~ent and the~to ~1 ~n~ ~J- ~J
light- ~r picture ele~ents, Fi~ lb ~ n alternat:ive e~bod~ ~nen~ o a swe~p in a cell wit~h fir~t and ~ ight- ox picture elelnents, ~ig 1~ illustr~es a f~Ll~- ~ ex~le C)f how a gw~ep aan ~e effected in a ~el1 with fir~t and ~h~- o~
pi~ture elements, Fig 2 illu~l~ an ar~-~y~t ~sed on physia~l di~plac:e~3nt o~ the ma~rix, Fig 3a illu~ca~ y~n0nt wherein the d~rl~ment of 2S t~he ~atri~ ~tive ~ r'-~in the ~"f~ngemen~
comp~lses an optical ~st~m, Fig 3b illustrates a secor~ odimen~ of the a ~ ycu~lt a~c:ordins~ to Fig 3a wi~h a differe~ optic~ ys~elu and Fig 4 illustrates an embodiment wherein the ~ond ligh t- or picture elemen~ ~re rea~ and ylou~ise h~lnn~ to a first light- or pictu~e element~
DETAIr~n DESC~IPTION OF l'HE INVEt~TION
W095WK9~2 21 70867 ~Cl/~h~
Fig 1 illus~rates the pr1nc~p~ 9 of an arrangement 100 comprising fi~st and second light- or pi4ture elements arranged 3U~ Lially in ~wo di~ci~s. The light- or p~cture elements are -~u.~ng ~o tbe shown emhod~nt a~ ~a~ r4g~7~rly~ The ligh~- or pict~se 5 el~n~s ~ be s~d to ~or~, ~r ~ be ~1 in dif~ oells 5~ whe~ each c~ a flrst ll$ht e~ement 24 ,~ .1, .... 5~ a r~mb~ ~f ~ A elem~t~ 31.~ 1. ..., S) ;k,l 1~ 1.1.
2 3 ) ~hiC~ oan be ~aid ~o belong to or ~p~,~d o~ the ~i~s~ ht element ~ . In Fi~ 1 ~s s~h~t~ y lllu~-,a-_~ a matr$x ormQd ~0 by dirre~ L cells 11,~ wh~reas ~n Fig~ la to lc diLf~ example~
are ~hown illu6~ ing how a ~ 1, for example 1~,. oan be bu~
and how the ~weep can be e~fe~ted wit ~ the re~ lve cell. ~$~h a sweep i~ ~t both a ~eal ~weep, ~ut also a ~erial a~tiv~tion acoord~n~ to the e bcdic-nt as ~llu~t~a~ed ~n Fig 4. The ~
1~ light-- or p~G~ure elemen~4 3~ ~ k l w~ch al~o can ~e sa~d tD be d~ e~ light- or picture elements are according to the ~ ~d e~bodiment regularl~ A~,~d ~ithin the cell. It co~ld also be r~ible to a~ ~ tho~e in ~ non-regul~r way withln the cel~. HOwever, according ~o an a~vanLageous embod~ment the 20 dir~e~ cells fo ~ g ~he matrix a~e ~o built that to each cell o~ing light- or picture elements are ~L~nged in the sa~e way in ~11 ~he oells so th~t a common ~weep (~ee a~ove) of the whole matrix c~ e ~ried out, i~e. that it ~n be ~ either in a real or in ~ fict~ve wa~ simult~neously and uniformly. Aoco~ding to the inven~ion a~ s~ng means or ~dd~e~sj~g devices as well f~ed;~- ~nd ~odulatlon means are merely arranged ~o each firs~
llght- or pi~ure element 2~, or ~ so ~ main element. The mat~i~ which i5 formed by the first ligh~- o~ picture ele~ents 21~
is a comparatively thin matrix where~ the matrix which i~ formed hy ~h~ sec~n~ ~ight- or piq~ure elemen~s 3~ forms a much d~e~
matrix. AS referred ~o a~ave ~he addre~ng me~nQ as well aQ.means for ~in~ and modulation are only ~n~-ted ~o each fi~st li~ht-or picture el~ e ~ 2~.
3~ U~r~e~ both ~irst and se~nd light- or picture elements are a~ti~ated via said means wh~ch in the ~ollc~r$n~ some~imes merely ~og~932 21 7~ PC-l/S~,~.J~
are de~L~ ad~e~æ~g mean~ even if they al~o may comprise means for f~ Ai ~g and r~ci hl y mod1ul~ion ~nd regulatio~ whereupon the f~rst light- or picture elements ;~ are activated dire~tl3~ whF~ s ht- or pi~ture elements 3~ are acti~ated S in~ly vi~ ~e f~rst light- or pia~e elemen1;s 2~ In F~g 1 a m~ illuo ~d wl~ch oonq~ ~e~ 25 oell~ wlth ~11-Jeth~r g l ~ ght- o~ plcture elements ln each Gell . Of the~;e g light- or pic:tu~e elemenl:s one light- or picture element *onn~; a 2;0 ~ll~d f~rst ~lght- or plcture eleme~t ~,~ wl~eas the other 8 lO form so ~s~l~d ~?~J~ ht- or pi~ture elem4nt~ 3~ "1 ~hiCh ~o~
e fir~t light- or picttlre element 2~ f the ~ell. In the ~h ~ n e ~ ment the fir~;t light- or p$cture ele~ent ;~
o~ ~,ged ~n the ~lt~ of each re~ ive cell 1". In some ca~es it i~ advantageous to have ~ ~ ~vely low ~swe~r~ frequenc~
1~ wh~ch, diLr~ ly rom ln a telet~s~on (one liyl.~ ~ou~e), easlly can be ~btAined with a matrix: i for examp~e the ~we~n~ mo~ement i~ ~ox.-~rd ~nd ~ ~L- ~in~ the frequency for the forward- and back m~ve~ent will be h~h~r than ~he total ~weep frequency ~0 The mo~ulation o~ the light- or pictu~e elements is ob~ined in ~he time domain, during the inte~val in ~h ~he SWQ~p is ~arried out The ~w~eplng movement is according to an ad~ agao~ em~odiment uni$orm in on~ direct~on, i.e. it is not ~e~A~ thst ~or ex~ple the ~ight spot stops etc. Thus the movement can be continuous and unifo~m (~f. line de~lection in an o~dinary TV)~ A~ording ~o al$erna~i~e embodiment~ it is also po~s~hle t~ have a di~r ~chopped n movement.
~0 In Fig la is illus~rated a cell 11l as that ~st descri~ed in Fi~
1 with ~ light- or ~icture elements, i.e. a fir~t light- or pi. ~u~a 22~z and 8 ~ n~ lisht- or pic~ure elements 31,1 k.1(k.1~.Z.3)~
In th~ shown embDdiment the fir~t li~ht- or pia~e ~ nt ~2 2 iS
~r~anged in the ~enter the ccll whereas the seoond light- o~
pict~re elemen~s are arr~nged in ~ ~egul~r w~y ~round t~e first light- ~r pictNre elemen~. In the figures arrow~ illustrate an - wo~g32 217~i~67 P~ 778 ex~mple of how a sweep c~ be efec:ted ~cross the cell. A c:omplete sweep thus means that eac~ first ligh~- or pic~ure ele~ent is swept and r~ es ~), all positions fo~ the '-G~ igh~- or plcture elements b~?lQn~n~ to the~e fi~8t li~ht- or pi¢ture ele~nent~ The 5 ~d~ g D~ are ~ l~l only to th~ fi~st light-or pi~l,~e eleme~t (~ot ~ coording to ~lif~ L e~dl~ts ~a~ either the w~wle ~atrl~t ~e df~r~ whiC:h will ~e furl;her des~ribed below) or ~he ~.~r,g~ment ¢~n ~e comprised in aul aptioal Les~l ~he~n the ~ A~.el~leI1t is n4t r~ but ficti~e ~nd 10 ~3~i~ved with l;he assi~t~n~ of r~fl~y means, ~irrc~r~ etc~ Thi~:
e~i~nt wlll ~so be fur Lher de~aribed }~e}ow. I~ ~t:h these enbodl~ts t~e ~ d light- or picl:ure elements a~ f~ctive~
ding to a *hird embod~ment (al~o t~is fuYU~_~ deqc~bed in the win~) are however slso the ~o-~J light- c~r p~c~:ure el~nPnts 15 re~l but they are ~ J~ng on tho fir~:l; llght- ~r pio~ur~ element.
In Fig 1~ is illus~rated a ~ A examp~e o~ a cell 1~ i~st and ~C~r~d pic~e elements and ho~ a swe~ri n~ movcament can be ~ffecl;ed ~ ively illu ~J c~,ed with ~ n the fi~ure. ~lso ~0 in t~ e~odiment the firs~ t- or pioture elemen~ 22 2 ~e Jn~ in the w~ lc fi~:~l ly illustr~tes in ~n strativ~ wa~ a furthe~ ent o~ how a cell c~ uil~.
This ~odi~e:r~t differ. f~ in that ~he first ligh~
el~ment ~ 3 iS not ~ ed centrally in the cell but in an~her 5 ~y, in the F~ embod~nent in a ~v~ . Of C:ourse it could ~lso be ~ ~nge-l somewhere else s~n~e ~;his does not influence the P~in~irl~ of the inventic~n but merely gives diff~arent technic:al olutions. The displacements or the swe~p~ mc~ements may also be diagonal or similQr, the essentisl bein~ that all po~itions, 1.e~ also ~he se~ond light- or pictu~e elements whi~h are not directly addre~ed and ed etc. arA ~o~ered.
~c¢Drdin~ to the invention the li~ht- or picture elements ma~
3S compri~e light ~ulces. A ~ be~ of di~ferent light so~r~es are of cour~e poss~ble among whioh among others can ~e me~ione~ so c~lled - W0~5~0G932 PcTn~E;94~00778 lis~ht-emi~ting ~; ~ s, LE~, liquid ~yS ~l ~ells with one or more real light so~ces, multi~olouI~ systems etc:. Th~ light or picture ele~en~cs may also co~?rise de~G~ ~ ,a or ~ight detectors .
5 In the ~ollowing ~ given a co~parison ~ ,reer~ a 3~r~ n~
an~ a s~p~ ~hin ~atr~ ~w~ bo t~he i~.,w.llorl. The li~ht or pi~e elements ~ hereln d .~51~d l~ght elements for rP~ of ~ plicJ ty. For rc.~ ; of siD~rl icity ~;ho wanted ~ r ~e~301utlon, i~e. the number of line~, ls g~ tc~ be N whereas the de~i~e4 10 size, i.e. t~e side of a ~;quare, ls ~ to be L. F~ a ~ r ZL~X is t;hen regui~ed N lls~ht elemen~s wh~d a~ 1 ha~e to be ~iq~ ~A for ~a~cimum disL~n;e L. T~ey ~ill then mov~d with a speed Lf~t.
l!j Wi,th Zl ~in matrix (~:ording to the :4~ on) with n~ fi~st ligh~
elements o~ light ~ou~- e~ery light ~e nes~C to ~e di~ cecl to N2/nZ di~Le~ positions~ and a distan~:e in x- as well as y-dir ~ ion, whioh i3 L~n J;nd it moves wlth a spee~ of L~N~n~t. For the l~nt~-~ arr~e~ent the phy8ical di~lA~ce between two adjac~nt li~ht ~vu-c~s w~ll be ~/N whereas the physical dlstance between ~wo ad~-acent light ele~ents in the thin ~atrix L/n is considerably sl~ .. The mAximum ~ ~ment or ~he 11~ arra~ will ~e L
wherea~ the maxi~um displacement for the th~n matrix, i,e. light elements co~prised thereby, w~ll be ~2/n. If the total number of light sou~ces, for example ~, i~ gleater ~han N, i.e. the number of light sources in the 1 i ne~r array, ~he ~elocity will be lower for the thin matrix, namely L-N/nl~t aS comp~ed with ~f~t (for the 3ine~ ~rrangement). If ~urther the veloci~y is lower fo~ the thin matrix, lower power will ~e ~equired fxom e~h light source in order to xeach a ~iven tota~ power~
In the following the dif~eren~ em~odi~ents will be further described. In F~g 2 an a~ ement 10 is illustrate~ in whi~h the fir~t light- or picture e~elen~s are real an~ form a ~hin matrix whereas the second light- or pictu~e elemen~s are fi4tive and form a denser ~atrix. For r~sq~c of o~viousne~s the elements are not W09~g32 2 1 7 Q 8 6 7 ~7$ve~ rei~erence si~ns i.n Fig 2; ~ or ~am~le Fig 1, Ad~ o mea~s or devices as well ~s means ~or fenA~ng ar~d t~ o~ etc ~s m~t~ ove are spatially ar.r~ged only to each ~irst light- o:r pict~e ele~en~ and fir~t a~; well as ~f ~A
5 l~ght--or pi~e eleme~ts are WtiYa~Ced Yia said ~*~s w~re~n the aot~vation o~ the ~ J ~ i5Jht- or p~c:ture elements is ~:L~0~L~l ~dly dw~ the time i~ Lv~ which ea~h ce:l..l withi~ 7y ls ~ u~ to an ef~ e, n3al "rl30ement and ~ in!l whi~h the whole m~ix, i~e. each ~11 10 ~ tely, is c~kpletely ~o~ Fig 2 ~1 7 ~ aL~s ~ovz~ble arr~ m ~t 100 for example i~o~i~g a ~ rl:~Y wh~ ed ~n a fi ~ ~ramf~ 6 . The ~ le d~ ; s~ra~ed in 'che ~i~ed ~ra~e 6 ~v-l9l~ attr.~;~ ~ 7, 7; 8, 8 ~iCh are ~o ormed th~t the frAm~ ~-v.~ p~ac~ln~ ea~ Y o moved in t~o direct~ons lS so th~t t~e ~r~l~ ~atri~c i~ ~.LLed. ~h~ ~ALI~--r~ ;n~ mearu3 7, 7: 8, 8 pro~ide ~or hori~onta~ 7, 7 ~nd ~tic~al 8, A attac:hment. The A~ment isl t~ o small that it.max~ally U~ to the disl,~e be~ , ttoo adj~ fir~;t light- or picture ele~ ts, c Fig 1. The /1 i ~p~ i nlJ means g can be ~ormed in ~ number of 20 di~ . way~; ~nd wl~ d$~feren~ ~hr~i r~ solutions . ~x~mples L ~re piezo-elements or p~ezo-dev~c:es ~rranged in ~ ton wit;h t~he ~ttz~oh~n~ mea~ 7, 7; 8, ~. The ~ sGin~ ~eans 9 may of e ~lso pro~v~le for a ~ rl~.ement in the ~o~n~ of a tran~verse ~ovement, i.e. a ~ovement pa~allel With an ~djacent edge or 25 slmi~ar. The displac~ ay al~3o ~e achie~ed in a ~ her o~ o~her ways, ~or example magnetjr-Ally~ wi~h el~ ,r~J.na~nets or ~Tia magneto~2triction etc~ The di ~pl :~; ng ~eans are in the shown enbodi~ent so a~:xan~ed that two means provide for vert~ cal displ Ar~n~ent whereas two pr~vide for horizontal displac:~m~nt. ~he 30 allan~ment may also comp~ise so called position ~ 5~ ng means ~-hi~h not are shown since t~ey as to their~ . unct~on and ~orm may be of any knowxl lcind The ~ddre~ n~ ~S wel3~ as addrt~ means as well as means for f~edin~ and mod~l~tion e~c are also known per se and C2~n be orm~d in ~ny arbitrary way p~o~ided ~hat only each 3S ~irst light- or plc:tllre ~lement is di~ectly connected~
wo ~ 2 1 7 0 8 6 7 ~ roo7~
1~
In the en~ t desc~i~ed above the ;3~ d~ ment is tbus d~spla~ed phys~ y all ove~ t:he ma~r x. In Fig 3a an ar a~ement will be d~cribed wherein the ~ rl ~ ment is fic:tive and w~ere~n the ;~ ~ng~ment is ~prised in ~n op~ioal ~D ~ In Fig 3a the 5 3i ~1 ~cement is ~h~ ~-ved ~a a ~irror ~3 wh:~cll can be tu~ned or ~ sL~Led in t~o dir~o~s and thi~ ~:an of r~.J. ~Q also be ~J~ie~
out $n a n~er of ~ ~~r~ way~ and :Ln Flg 3h ~LCL example i~
cfl of ~he ~nge~ent 30 co~rised in a~ opticzal S~ot 1~ ca~p~i~r~g t~o ~irr~rs 14, 15. The ~yæment n~ay of ~5 10 also form pa~ of a f~ ng sy~em oompr$sinSJ l~n~ , pr~ etc.
he di~rl~ments of the m~ e very ~mall ~;ho8e aarl be ~Wle, for e~ nple via to~gion, I:lut ~lso in thls case is ~ al that ~:he a~ nsr ~f~ ~"n4dulation ~c) onl~
i~ ps ~ridea -co the ~irs~ picture- or light el~nt~ and that ~he 15 fia~:ive ~l~r~ ~t is ~o s~l ~at it ma~c~mally w.~ yO~C 't:O
a dia~ ~ (in one dire~tion or dim~-ns~ ) whic~ r~;~ond~3 to the di~ ~e l~et _ln two adj acent l~ ght- or pic~e elemen~s ( see Fi~
1) ~nd that ~.~s~o~gll the whole ~atrix is c~overed.
20 In Fi~ 4 a r~ L~ is shown ~here:Ln the ~ light-or pictu~e ele~ents 31.1 k.1 a~e ~eal ~d t~ ye~ ln y~ p belonging to a ~irst light- or plcture e~ement 2~,1 The e~ho~3~ment illU~ in Fig~ l, la-lc 18 alsc~ 4pplC~ .iate in ~ S case with the diffe~ence that the ~ec~ond light- o~ picture elem~ are real.
~5 In thls c:ase sre ~hus bot:h f~rst and s~13conA light- o:~ pi cture eleme~nts real ~ntl for r~ of sin~ clt~ is c~ne of the second liyh~- o~ picture elements assumed to be ~ F.f~onAsd by ~he first light- or picture element or ~50 called main element on whi~h the others ~ 1, The light- o~ picture elemen~g may thus be seen as 30 p~sically divided whe:rein eac:h first light- or plcture element is divided for ~Ya~ e into ~ num~er of ~ te ligh~- o~ picture elements ~rh~ are fed serial~y via the c:orrespo~din~ first light:-or picture ele~en~ so that a r~o~in~ ~ight ..~ wi~h a varia~le intensity i8 obt~;ne~. The addre~sing ~l~d f~ in51 i5 only pro~rided 35 to eac:h flrst light- or picture element. The ~ddr~s~ng ~it~in ea~
cell com~rising ~ first t ight- or picture element ar~d a r~llmh~-r of .
wo ~32 2 1 7 0 ~ 6 7 PC~ 0778 ~n~-nt ~er~n~9 ligh~- or ~i~ture ele~ents i~ rx~ied out ir~ the ti~domain and the sweeE~ng sl~ is co~amon for ~11 ~:ells ~prised by the ~atri 5 Ac~ ~g to Fig 4 the fiweep is C~ 1~d ~imu~.tz~ ol~r a~u3.
com~o~ly ~y the first light~ r p~ cture e3 ement wbere~s ~he ~ity ~ati~ 3 ~,~aYaL~ly .;o.,L~ o~ Ibut ~Xewi~e ~ d to eac~ first li5j~ht- or picture element). In the cR~e o~
deL~;La~ reg~sL.~ on ~s ra~evant ins~e~d of ~.,l.e-~:Lty 10 re~ulat~an. F~6~, modul~tion e~ is not fu~er e~empllfied 1nC~ thiS C~aI~ be done in w4ys which are ~nown per 2;e. It ls Llal ~hat addre~Qi~ and swe~p i~ carr$ed out siw.ul~neou~ly for all fir~t l~ght- or pi~e ele~ent~ wherein to ~c~ firtit ligh~- or picture element ~lor~7t~sJ (real) ~u~ ligllt- o~ piature 15 elemen~s are se~ lly ~-- -C~ eLo irl a ~ay which is h~n~ per ~;e. M~~ tion, t~he regulat~o~ of ~he intenslty ~;~nd ~ ~ther f~ ions~ a~e or ~an be co~L~olled ~eparately. ~n Fi.~ 4 iS
fllv~trated ~hat ~he int~n~i~ for ~e ligl~t- o~ pic:ture ele~aen~s a~e ~onL~olled separately as a fun¢~ion of time whereas ~illumination~ or sweep as men~ls~ above i~ effec*ed ,.~.~sly a~ far ~ the ~rirs~ light- or plct~e elements are ~ ~ned and sequsntinlly within each rc-~ec~iue ~el~. Rn arrow bet~e~n the intens~*y ~egul~t~on dev~ce/~egis~ ion and a ~weep w-~t~ul circui~ indicates tha~ they ~re sy~ 7~.
As mentioned above ma~ according to one embodiment the light- or picture element comprise for example light ~ouL-~es whi~h ~n be said to form modul~a~le lighL~ts~ These ar~ displaced per~odically in ~uc~ a way that each li~ht~p~t will take ~ n 30 number o~ posit~ ons~ for example 100, ( th~s howe~er me~ely gives an exa~ple and it is no~ intended t~ ha~e any limiting eff~ct), which can be arranged regula~ly around the ~est posi~ions" or the der~d~t light- o~ p~c~u~e element. ~he ~e~ult will then be ~hat ~ matrix is created with 100 tlmes mo~e pixel than the re~ be~
of liyl~Ots. This can f~r example be se~n a~ if each separate lightspot is re~l~ced by a very small ~uad~ati~ lO~llnes Q ~hod--- W0 ~6932 ~ 2 1 7 0 8 6 7 ~ k~ C~18 ray-t~leviSion-pict~s~e tube. Thus the physical disp~ . 1, 0~ tl~e 3 liy~L~ are ~e~ small. As an esa~nple ~s given a ~rl:~Y
in the for~ of a ~atrix o~ lOOO x 1000 liqllid cry~L~l elemen~s ~nd ~i~h a ~ ;urfaoe of a~out 1 cm2~ This woul~ mean a p~ce~*;7~ of 5 }O x 10 llm. ln the thin ~atr~c a~-~rding to the ~ r~.Uon t~e di~ L~ ~aL~ he light-spots ~:ould ~ ;3~0Ut 100 w~l~ough the ~.A~3~sa ~y ~aximum ~ r~ ment max~ally would ~, about 100 llm. If t~e mat~ix is ~all it can as al~eady ere~ to ;3bave l~ rl~A phy~~ y, ~or eY~ wiffl the use 10 of piezo-element~ . If it i ns~ad forms part o~ an optical proj~ or example lma~e formin$l system, the optlcal axes can ins~ead be ~le~ted, for example with t~ 3e of rotat~ble mirxors as n~nt~oned ~e. The deflec~ion angle will be ~rery small, in ~ome ~ ;maller than 1/100 of a rad~ see t:he ~e men~S nu~r$c:a1 ex~ple ) whereupon the l~a~ion of the n~ rrors c:~n be 7 on to~sion~
The ~ em~ant ~c~ ording ~o the ; ~ l,ion c:an be orm~d as a ~ispl~r as weli a~ it can be u~;ed in printers or for optical, ma~netical or electrical r~A~in3 cf $wo dime~qion~ Ytorages or picture~ etc. The a~ngement can al~o;form a de~ o for im~ge ~e~in~ or form pa~t of a ca~era o~ a copy~ , o~ for PY~ e an aL~ly~P-nt for production of pa~xns with the uge of lase~
m~c~h i ni n~
Th~ou~h ~he inve~tion it is for example possible to provide ~eproduction w$th a more ~r less good sharpness. One e~ e is that if a good ~esolu~ion is alread~ p~esent, whiqh however is inte~ to ~e somewhat further increased, then it is possible to 30 have a great number of cells (for example about 600 x 600 ) wit~
only 4 light/pict~re element~ in each c:ell. Another e~ can be t~}cen to ~e fou~ TV-appa~tuses ~ine~ with 4 cells with 600 x 600 pic~ure el~ s in each, essentially c~ ~ _.ding ~o ~v, I~ is l~ereby pc~sl ble ~o go from a normal resolution t~ resolutiorl for 35 HDTV~ At receptiorl of zm ordinary TV-sigrlal the swee~ is omitted and the c:ell will li~ht as one single unit~
WO95/0~932 2 1 7 Q g 6 7 r li. ~54/007~
1~
~rhe invention is not limited to the sho~m e~ ent~; but can ~e ~ree~y va~ied ~ithin the scope of the clai~;. For ~Y:~rle ~he size of the ar~y.e ~-t, ~spl~y o~ anythin~ ~lse, can taXe ~ y d$~fer~nt valu~s, t:he number of aells a well as t~e nu~er of 5 el~nts ln ~he c~lls '~8 not ~i~ed to arl~ part~ n~ nunlbers, the ~e~ent ~ay fo~ e~qple be v~y ~ ut ~t can al~;o acoording to al~,la~Live em~odiment~ be used for prin~ng Of wl~ole pa~e~ o about tens of cm (for exa~le ao x ~o ~) etc. The ~ovements of ~he ll~a~iX C~ 180 be pro~ided ~n a nl2~ of ~lireY~L w~ys as well 10 a~ adJaaent spo~s can mean diagonal~ ~l ~y~l elsments e~c~ A
co~lete sweep whic~ s the whole matrix qr ea~ l c~
~atriY respectivel~ way need dirfer~L time a!3 well as circ:uits, ,c~ n~J etc ~an be formed in a nu~er af d~Lf~l~llL way;~
lS
Claims (26)
1. Arrangement (100; 100; 10; 20 30: 40) e.g. for image generation and/or reading comprising substantially in two dimensions arranged first and second light elements (2i,j, (i,j=1, ..., 5); 3i,j, (i,j=1, ..., 5); l (k, l=1, 2, 3)), controlling and addressing means for activation of light-or picture elements, for example means for feeding and modulating whereupon at least the first light- or picture elements (2i,j,(i=1, ... 5)) are real and form a thin matrix and whereupon the second light- or picture elements (3i,j:k,l) form a denser matrix and is that the position of each first light element (2i,j.) at a given time (t0) corresponds to the position of a second light- or picture element (3i,j,2,2), c h a r a c t e r i z e d in that the controlling and addressing means are spatially provided only to each first light- or picture element (2i,j) and in that first as well as second light- or picture elements are controlled and activated via said control- and addressing means wherein activation of at the time (t0) not to a first light- or picture element (2i,j) corresponding second light- or picture element (3i,j:k,l=2) takes place indirectly and successively during the time interval .DELTA.t and in that only those second light- or picture elements which at the given time (t0) are located within a distance from a first light- or picture element (2i,j) which maximally corresponds to the distance (a) between two adjacent first light-or picture elements and which are provided to- or dependent on said first light- or picture element are activated via to said first light- or picture element belonging controlling and addressing means through simultaneous, effective, real or fictive displacement of the by first light- or picture elements (2i,j) formed matrix in essentially two directions or dimensions in such a way that in addition to all first, also all second light- or picture elements (3i,j:k,l) are activated once during the time internal .DELTA.t.
2. Arrangement (100; 200; 10; 20; 30; 40) according to claim 1, c h a r a c t e r i z e d in, that the first and the second light- or picture elements axe substantially regularly arranged, forming cells (1,j(i=1,...5) each comprising a first light- or picture element (2i,j) and a number of thereto belonging second light- or picture elements (3i,j:k,l).
3. Arrangement according to claim 2, c h a r a c t e r i z e d in, that the first light- or picture elements (2i,j) are arranged in the center of a cell and provided by a number of second light- or picture elements.
4. Arrangement according to claim 2, c h a r a c t e r i z e d in, that first light- or picture elements (21.3) are asymmetrically arranged in a cell i.e. they are asymmetrically surrounded by a number of second light- or picture elements.
5. Arrangement (10, 20; 30) according to anyone of the preceding claims, c h a r a c t e r i z e d in, that the second light elements are fictive and in that they are activated so that the whole surface of the matrix is covered by a physical or fictive simultaneous displacement throughout the matrix formed by the first light- or picture elements.
6. Arrangement (10) according to claim 5, c h a r a c t e r i z e d in, that the whose matrix surface (1i,j(i,j=1, ...5)) is covered through physical displacement.
7. Arrangement (10) according to claim 6, c h a r a c t e r i z e d in, that the displacement is effected with the use of PIEZO-elements (9), in a magnetical way or any other way.
8. Arrangement (20, 30) according to claim 5, c h a r a c t e r i z e d in, that the displacement is fictive.
9. Arrangement (20, 30) according to claim 8, c h a r a c t e r i z e d in, that it is comprised by an optical system (11; 12) and in that the displacement is provided through rotatable reflecting means (13;
14, 15) of similar.
14, 15) of similar.
10. Arrangement (20) according to claim 9, c h a r a c t e r i z e d in, that the optical system (12) comprises a reflecting device (13) which can be rotated of turned in two directions.
11. Arrangement (3) according to claim 9, c h a r a c t a r i z e d in, that the optical system (12) comprises two in different directions rotatable reflecting means (14, 15).
12. Arrangement according to anyone of claims 1-4, c h a r a c t e r i z e d in, that the first light element (2i,j) comprise modulatable light elements.
13. Arrangement according to claim 12, c h a r a c t e r i z e d in, that the thin matrix formed by the first light- or picture elements (2i,j) is displaced synchronously with the modulation of the first light elements.
14. Arrangement according to anyone of claims 1-4, c h a r a c t e r i z e d in, that the first light- of picture elements (2i,j) comprise light sources.
15. Arrangement according to claim 14, c h a r a c t e r i z e d in, that the light sources comprise light emitting diodes, LED or similar.
16. Arrangement according to claim 14, c h a r a c t e r i z e d in, that the first light- or picture elements (2i,j) comprise illuminated liquid crystal elemennts.
17. Arrangement according to anyone of claims 1-4, c h a r a c t e r i z e d in, that the distance (a) between adjacent first light- or picture elements (2i.j) is about 100 µm and in that the displacement of the thin matrix likewise maximally is about 100 µm.
18. Arrangement according to anyone of claims 1-4, c h a r a c t e r i z e d in, that the total surface of the thin matrix is about 1 cm2,
19. Arrangement according to anyone of claims 1-4, c h a r a c t e r i z e d in, that the first light- ox picture elements (2i.j) comprise light detectors.
20. Arrangement according to claim 19, c h a r a c t e r i z e d in, that the thin matrix formed by the first light- or picture elements (2i,j) i.e. the light detectors, effectively is displaced in the plane of the matrix synchronouely with the reading of the light detectors.
21. Arrangement (200, 40) according to anyone of 1-4, c h a r a c t e r i z e d in, that each first light- or picture element (2i.j) is physically divided so that it comprises first light- or picture elements (2i.j) and adjacent second light- or pictue element (3'i.j) and in that each first light element (2i.j) and thereto belonging second light-or picture elements (3'i.j:k.1) are fed serially within each respective cell (1i.j) so that a moving light source with variable intensity is obtained wherein the feeding is provided through a sweeping signal which is common to all first light- or picture elements (2i.j).
22. Arrangement according to claim 21, c h a r a c t e r i z e d in, that modulation of first and second light- or picture element is carried out separately.
23. Arrangement according to anyone of the preceding claims, c h a r a c t e r i z e d in, that the time interval .DELTA.t reaches about 1/50 s.
24. Display comprising substantially in two dimensions arranged first and second light- or picture elements (2i.j.(i.j.-1, ..., 5); 3i.j.
(i.j=i ...,5); 1 (k,1=1, 2.3)), controlling and addressing means for activation of light- or picture elements, at least the first light-or picture elements (2i.j.(i=1. ....5)) being real and forming a thin matrix and the second light- or picture elements (3i.j:k.1) forming a denser matrix wherein the position of each first light element (2i.j.) at a given time (to) corresponds to the position of a second light- or picture element (3.i.j.2.2), c h a r a c t e r i z e d in, that the controlling and addressing means are spatially provided only to each first light- or picture element (2i.j) and in that first as well as second light- or picture elements are controlled and activated via said control- and addressing means wherein activation of second light- or picture element (3i.j:k.1=2) takes place indirectly and successively during the time interval .DELTA.t and in that those second light- or picture elements which at a given time (to) are located within a distance frotn a first light- or picture element (2i.j) which maximally corresponds to the distance (a) between two adjacent first light- or picture elements and which are provided to- or dependent on said first light- or picture element are activated via to said first light- or picture element belonging controlling and addressing means through simultaneous, effective, real or fictive displacement of the by first light- or picture elements (2i.j) formed matrix in essentially two directions or dimensions in such a way that in addition to all first, also all second light- or picture elements (3i.j:k.1) are activated once during the time interval .DELTA.t.
(i.j=i ...,5); 1 (k,1=1, 2.3)), controlling and addressing means for activation of light- or picture elements, at least the first light-or picture elements (2i.j.(i=1. ....5)) being real and forming a thin matrix and the second light- or picture elements (3i.j:k.1) forming a denser matrix wherein the position of each first light element (2i.j.) at a given time (to) corresponds to the position of a second light- or picture element (3.i.j.2.2), c h a r a c t e r i z e d in, that the controlling and addressing means are spatially provided only to each first light- or picture element (2i.j) and in that first as well as second light- or picture elements are controlled and activated via said control- and addressing means wherein activation of second light- or picture element (3i.j:k.1=2) takes place indirectly and successively during the time interval .DELTA.t and in that those second light- or picture elements which at a given time (to) are located within a distance frotn a first light- or picture element (2i.j) which maximally corresponds to the distance (a) between two adjacent first light- or picture elements and which are provided to- or dependent on said first light- or picture element are activated via to said first light- or picture element belonging controlling and addressing means through simultaneous, effective, real or fictive displacement of the by first light- or picture elements (2i.j) formed matrix in essentially two directions or dimensions in such a way that in addition to all first, also all second light- or picture elements (3i.j:k.1) are activated once during the time interval .DELTA.t.
25. Detecting arrangement reading of images comprising substantially in two dimensions arranged first and second light elements (2i.j.(i.j=1 .... 5); 3i.j. (i.j=1 ..., 5); 1 (k, 1-1. 2. 3), controlling and addressing means for activation of light- or picture elements, at least the first light- or picture elements (2i.j.(i=1, ..., 5)) being real and forming a thin matrix and the second light- or picture elements (3i.j:k.1) forming a denser matrix wherein the position of each first light element (2i.j.) at a given time (t0) corresponds to the position of a second light- or picture element (3i.j.2.2), c h a r a c t e r i z e d in, that the controlling and addressing means are spatially provided only to each first light- or picture element (2i.j) and in that first as well as second light- or picture elements are controlled and activated via said control- and addressing means wherein activation of second light- or picture element (3i.j:k.1=2) takes place indirectly and successively during the time interval .DELTA.t and in that those second light-or picture elements which at a given time (t0) are located within a distance from a first light- or picture element (2i.j) which maximally corresponds to the distanoe (a) between two adjacent first light- or picture elements and which are provided to- or dependent on said first light- or picture element are activated via to said first light- or picture element belonging controlling and addressing means through simultaneous, effective, real or fictive displacement of the by first light- or picture elements (2i.j) formed matrix is essentially two directions or dimensions in such a way that in addition to all first, also all second light- or picture elements (3i.j:k.1) are activated one during the time interval .DELTA.t.
26. Use of the arrangement according to anyone of the preceding claims in a camera.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9302845-4 | 1993-09-03 | ||
| SE9302845A SE501715C2 (en) | 1993-09-03 | 1993-09-03 | Device for image generation and / or reading and use of the device in a camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2170867A1 true CA2170867A1 (en) | 1995-03-09 |
Family
ID=20390967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002170867A Abandoned CA2170867A1 (en) | 1993-09-03 | 1994-08-25 | Arrangement for image generation and/or reading |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5541401A (en) |
| EP (1) | EP0716767B1 (en) |
| JP (1) | JPH09502539A (en) |
| CA (1) | CA2170867A1 (en) |
| DE (1) | DE69418049T2 (en) |
| SE (1) | SE501715C2 (en) |
| WO (1) | WO1995006932A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3466776B2 (en) * | 1995-05-24 | 2003-11-17 | キヤノン株式会社 | Image display device and stereoscopic image reproducing device using the same |
| US5831699A (en) * | 1996-04-29 | 1998-11-03 | Motorola, Inc. | Display with inactive portions and active portions, and having drivers in the inactive portions |
| JP2005151351A (en) * | 2003-11-18 | 2005-06-09 | Fuji Photo Film Co Ltd | Image reading apparatus |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2300678A1 (en) * | 1975-02-13 | 1976-09-10 | Logabax | PRINTING DEVICE FOR FAST PRINTERS |
| US4225862A (en) * | 1979-03-05 | 1980-09-30 | International Business Machines Corporation | Tuning fork oscillator driven light emitting diode display unit |
| US4311999A (en) * | 1980-02-07 | 1982-01-19 | Textron, Inc. | Vibratory scan optical display |
| US4934773A (en) * | 1987-07-27 | 1990-06-19 | Reflection Technology, Inc. | Miniature video display system |
| US4831370A (en) * | 1988-01-05 | 1989-05-16 | Honeywell Inc. | Vibrating fiber optic display having a resonant ribbon driver |
| US4931786A (en) * | 1988-02-16 | 1990-06-05 | Selsys Corporation | Electronic image display systems with improved cathode-ray tube construction |
| US5294940A (en) * | 1991-02-06 | 1994-03-15 | Dale A. Wennagel | Pulsed laser optical display device |
| US5291248A (en) * | 1991-02-28 | 1994-03-01 | Oki Electric Industry Co., Ltd. | LED carriage selectively movable in two directions |
| US5173796A (en) * | 1991-05-20 | 1992-12-22 | Palm Steven G | Three dimensional scanning system |
| US5281960A (en) * | 1991-11-19 | 1994-01-25 | Silhouette Technology, Inc. | Helmet mounted display |
-
1993
- 1993-09-03 SE SE9302845A patent/SE501715C2/en not_active IP Right Cessation
-
1994
- 1994-08-25 JP JP7508059A patent/JPH09502539A/en active Pending
- 1994-08-25 CA CA002170867A patent/CA2170867A1/en not_active Abandoned
- 1994-08-25 EP EP94926420A patent/EP0716767B1/en not_active Expired - Lifetime
- 1994-08-25 DE DE69418049T patent/DE69418049T2/en not_active Expired - Lifetime
- 1994-08-25 WO PCT/SE1994/000778 patent/WO1995006932A1/en active IP Right Grant
- 1994-09-02 US US08/298,975 patent/US5541401A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| SE9302845L (en) | 1995-03-04 |
| EP0716767A1 (en) | 1996-06-19 |
| SE9302845D0 (en) | 1993-09-03 |
| SE501715C2 (en) | 1995-05-02 |
| US5541401A (en) | 1996-07-30 |
| WO1995006932A1 (en) | 1995-03-09 |
| EP0716767B1 (en) | 1999-04-21 |
| DE69418049D1 (en) | 1999-05-27 |
| DE69418049T2 (en) | 1999-09-23 |
| JPH09502539A (en) | 1997-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20030825 |