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Publication numberUS2644113 A
Publication typeGrant
Publication dateJun 30, 1953
Filing dateMay 22, 1950
Priority dateMay 22, 1950
Publication numberUS 2644113 A, US 2644113A, US-A-2644113, US2644113 A, US2644113A
InventorsWalter V Etzkorn
Original AssigneeWalter V Etzkorn
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Luminous body
US 2644113 A
Images(1)
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Description  (OCR text may contain errors)

June 30, 1953 w. v. E'rzKoRN LUMINOUS BODY l Filed May22, 1950 ,Z lili q if@ L IN VEN TOR. Wa/er 1/. Ez kof/7 A TTOIQNEY Patented June 30, 1953 UNITED STATES PATENT oFFlcEf LUMINoUs BODY y Walter v. Etzkarn, oakland, Calif.` Application May 22, 1950, sarlalNa. 163,381

l f The present invention relates to luminous bodies, particularly intended to serve the purposes for which neon tubes or fluorescent tubes are generally employed at the present time and the principal object of the invention is to provide a luminous body of the character described that may be readily bent to form various shapes, such as letters and other characters in advertising display and other uses.

More particularly, it is proposed to provide, in one form of the invention, a tube or similar elongated structure made of plastic or any other suitable llexible and light transmitting material, and to arrange within said tubes or structures spaced sources of light disposed in such a man- 'ner that they do not interfere with the bending or cutting of the tube or structure into desired shapes, the sources of light being in the form vof ampoules or cavities or pockets containing luminous gas adapted to be rendered active for illumination by radio-frequency waves or similar agents. y

It is proposed to provide these luminous ilexible tubes in such a manner that they may be Amarketed in long units adapted for rolling on large spools to be cut into desired lengths bythe user or the retail merchant;

It is further proposed, in the present invention, to incorporate in such tubes or structures, a certain amount of fluorescent material, which may be applied in the form of a coating to the 'inside or the outside of the tube or other structure or may be embedded in the material thereof,

4and which will be excited to glow by ultra-violet rays emitted from the luminous gas in the ampoules, cavities or pockets, hereinafter designated by the general term of cells carried bythe tube or other structure.

Flexible plastics have now been developed which will hold high vacuum. Since the pres- "sure in the luminous tube is in the nature of '7 alphabet or other characters.

The body may be used as a source of light also.

s claims. (ol. 315-228) colors, is lire-resistant and shock-proof.

excit the phosphors.

The luminous body of the present invention has the further advantages that it is easy to manufacture, quite permanent, very flexible, has a relatively high elilciency, long life (possibly over twenty years) ,"a large number of available The plastic body is resistant to weathering and corrosive atmospheres, shatter resistant, vlight weight, easy to handle, easy to cut and drill, and has excellent light transmission characteristics'. s

Further objects and advantages of my invention'will appear as thefspecilication proceeds, and the novel features of`v my invention will be fully dened in the claims attached hereto.

The prefered forms of my invention are illustrated in the accompanying drawing, in which Figure 1 shows the general idea of the invention in connection with a flexible luminous tube,

Figures 2 to 8 inclusive, various forms of my -luminous body,

Figures 9 and 10, side and end views of a tube having -gas containing cavities instead of ampoules, and

Figure 11,` a method of forming a luminous -flexible bar in accordance with my invention, Figure 12, a method of evacuating and filling and sealing off long cavities in a plastic body.

While I have shown only the preferred forms -of my'invention, I Wish to have it understood that various changes Iand modifications may be made Within the scope of the claims attached Iheretolwithout departing from the spirit of the ,'invention.

The basic device, see Figure 1, consists of the flexible plastic body I (we shall rst consider the hollow tube) the phosphor coating 2 on the inside of the tube, and the'ultra violet radiating ampoules or hollow beads 3 within the tube. These ampoules or hollow beads are pumped out and filled to the requiredppressure with luminous .gasessimilar to the commercial fluorescent neon tubes. These ampoules or hollow beads or long slender capillaries are made of a material that will transmit suflicient ultra violet radiation to A radio frequency generator 4 is employed to energize the ampoules which supply the ultra violet radiation that activates the phosphors, giving off light from the inside of the'flexible plastic tube. Y

The term tube should be construed to mean plastic bar, strip, pipe, and similar forms.

The llexible plastic tube or body can take any one of many basic cross-sectional shapes: cir- 'cularyrectangularg' triangular, and many more complex shapes, even including certain lens-like surfaces. These can be easily formed or extruded. These flexible shapes can be either solid or hollow.

The phosphors can be placed on the inside surface of the hollow tubes. The phosphors may be imbedded in the plastics themselves, or the phosphor may be placed between two layers or walls of plastic, or coated on the outside wall. It is known to anyone in the lamp manufacturers art that the thicknesses and constituents of a phosphor coating are quite critical, especially where efficiency is a prime factor. Many of the phosphors now available on the open market are quite stable in air. In or on these flexible tubes these phosphors are not likely to become contaminated with chemicals harmful to their efficiency, such as iron, etc. These phosphors are plentiful and relatively cheap.

The ampoules or hollow glass beads will be made of quartz, quartz glass, or Corex, or other glass, or any other material which will transmit a relatively large amount of ultra violet light or near ultra violet light. Ampoules or hollow glass beads may be made to emit colored light from the visible portion of the spectrum. This can be accomplished by using a luminescent gas that willemit a colored light. These gases are quite common in the neon industry. It may be desirable to coat the inside walls of the ampoules or beads so they become small fluorescent lights in themselves. It is seen that the ampoules or beads may be used in three different ways in conjunction with the plastic tube or strip; namely, as a device to radiate ultra violet light onto a phosphor external to the ampoule itself; to give off colored light into the flexible plastic tube; or thirdly to act as a small fluorescent light source in itself and thus illuminate the plastic tube.

The ampoules may take many different shapes: a bullet, a tear drop, a spherical or nearly spherical bead, as at 5, or even the form of long slender capillary tubes even down to the small dimensions of the glass fibres in glass wool.

The ampoules may be inserted into a plastic tube, laid in a plastic trough, inserted in little pockets in a plastic body, used externally on the tube, or imbedded in the solid flexible tube.

The ampoules may be evenly spaced, staggered, over-lapped, concentric or eccentric with the tube, each arrangement giving a different effect, as illustrated in Figures 2 4.

The radio frequency generator may take many different forms. The Federal Communications Commission has set up several radio frequency bands for these non-communication uses (i. e. industrial high frequency induction heating, diathermy, induction cooking, etc). New tentative bands are now set up with certain allowable ultra high frequency bands even up to 2450 megacycles. The Federal Communications Commission has so oriented these frequencies that cer tain common harmonics fall into the adjacent bands which are used for these non-communication uses. The antenna 6 and the ground 1 of the radio frequency generator are shown as disposed along opposite sides of the tube.

There are a large number of antennae arrangements whereby satisfactory field patterns can be made and the gas filled ampoules will glow quite satisfactorily within these fields. It should be remembered that the higher the frequency the greater the efliciency of the ampoule, but high frequency current transmission becomes quite difficult. The optimum working frequency for the first units will probably be chosen around twentysix point eight megacycles. It must be borne in mind that high strength field gradients may be created in two ways; rst, by radiating considerable electro-magnetic power (or antennae current) wherein the waves travel out into the ether; or secondly, where the field is created between two conductors whose physical spacing is a small part of the electro-magnetic wave length. The first condition mentioned is known as a radiating source, and the'second condition mentioned is known as a non-radiating source, inasmuch as almost all of the power is conducted or transmitted by the two conductors in question, and a negligible amount is radiated out into the ether. The Federal Communications Commission has certain fixed requirements for non-radiating sources which may be operated on any frequency as long as they do not interfere with communications.

The input power to the oscillator unit for a sign board approximately 48 x 48", incorporating the flexible luminous tube, would be in the neighborhood of 200 watts or less. The input power for the working model now at hand is approximately 57 volt amperes.

The working model now at hand used 1/2 O. D, Tygon flexible plastic tubing, commercial phosv phor in a powdered form rubbed into the inside walls of the plastic tubing, and quartz ampoules about fs O. D. x 11/4 long with a 7 mm. Helium- Argon-Mercury fill. The radio frequency wave gencratoris a commercial type.

Other intended variations to the above descriptions are as follows:

1. The plastic body may have an antennae radiating wire run through it or broken segments of wire moulded into it in order to better carry the radio frequencycurrent to the ampoules, as indicated at 8 in Figure 6.

2. The plastic body may have two conductors running through it in such manner that they come very close to the opposite sides of the ampoules, in order to create a maximum field gradient across the ampoule, as indicated in Figure 2. Y

3. The ampoules may actually have short segments of wire butted up against the ends of the ampoules. as at 9 in Figure 7.

4. Small electrodes may actually be placed in the ampoules to more effectively carry the radio frequency current to the luminous gas within the ampoule, as at Ill in Figure 8.

5. A high eld strength gradient may be created by placing a plate Vand a screen parallel to each other and a short distance apart wherein the spacing between the plate and screen is asmall part of the generated wave length. Said plate and screen are energized from the radio frequency oscillator. The flexible luminous tubing containing the ampoules may be placed between the plate and the screen. This arrangement provides a very high field gradient for the flexible luminous tube. The screen may 'take the form of very fine wire or various forms of current conducting glass, etc.

6. Small or medium sized cavities may well be created directly within the plastic tube itself, as at Il in Figures 9 and l0. These may be filled with the correct gas mixture at the proper pressure. This may be accomplished by assembling component parts of the tube in a controlled atmosphere of the proper gas at the correct pressure.

'7. Anothermanner in which small cavities may be created in -a flexible strip `is to sandwich a perforated flexible strip I2 between two solid flexible strips I3 with thefproper flexible cement all in a controlled atmosphere of the desired luminous gas at the desired pressure, as shown in Figure 1l.

8. Cavities or compartments i4 can be sealed off in the plastic tube or bar which will act as ampoules. Various techniques arepossible for evacuating and filling these cavities with the' proper gas mixtures and at the proper pressure, as shown in Figure 12.

9. The luminous gases in the ampoules, beads, and/ or cavities maybe excited by an electrostatic potential gradient or by a low frequency electromagnetic wave instead of the radio waves of L. F. (low frequency), H. F. (high frequency), V. H. F. (very high frequency), or by U. H. F. (ultra high frequency). v

In addition to the luminous bodies described on page 1 wherein mention is made of luminous bodies that may be readily bent to form various shapes and other flexible and rigid structures mentioned on both pages 1 and 2, my invention also takes the following forms:

A block or panel light source which can take the form of an acoustical or insulating block or a decorative panel comprised of a large number of capillary tubes held together by a suitable plastic or other type of binder or transparent container. These capillary tubes, filled with a luminous gas to the desired pressure, may transmit only visible light, if desired; o-r may generate the required ultra violet light to excite the phosphors which are either intermingled with the capillaries, or mixed into the binder, or placed in or on the walls of the container.

This assembly of gas filled capillaries, plastic binder, fluorescent material, etc., is all placed within a steep high frequency radio field voltage gradient. As described in other parts of this writing, the high frequency voltage gradient causes the luminous gas .to glow andy give off ultra violet light which Will pass through the Walls of the quartz or Corex glass of the capillaries. The ultra violet radiation excites the phosphors with which it comes in contact. The phosphors then give ofi" or radiate the desired light. Other erythematic and bactericidal effects 'are anticipated at this time.

These blocks or decorative panels supply the long awaited architectural element which sup-k plies the heretofore unobtainable; a combination of a wall surface material, decorative panel, acoustical material, an insulating material, Kand highly desirable source of illumination. Low surface brightness in lighting sources has been a requirement of architects and engineers for many years. This system provides this desirable, low brightness source of light.

The recent developments of high frequency radio techniques, plastics, :and phosphors, and fluorescent paints has made these new surface and solid sources of light possible.

My invention also takes the additional forms:

A new type of painter liquid plastic which performs in the previously described manner.

The capillaries, which are filled with a luminous gas, and are of the same general nature as the capillaries heretofore mentioned, are made very short. These very short and small capillaries (or beads or ampoules) are thoroughly mixed-in or unified with a transparent or semitransparent liquid plastic, lacquer, or suitable paint vehicle. A proper amount of fluorescent material, or fluorescent dye, or fluorescent pigment is added to the mixture. This plastic or paint may be brushed, sprayed, rolled, or smeared onto the desired surface.

When the steep high frequency radio eld gradient excites the luminous gases within the small capillaries, the ultra violet light generated excites the fluorescent material affecting luminous paint. This luminous paint is not dependent on solar radiation, inasmuch as it contains its own source of ultra violet radiation.

Fluorescent paints are already available on the open market at reasonable prices in adequate quantities which contain desirable fluorescent materials for this type of use. These paints require an exciting agent, however, before they can go in general use indoors and at night. My invention supplies this desired excitation and opens a complete Anew field of use for the existing fluorescent paints.

I claim:

l. An elongated plastic tube of light transmitting material having separated and unconnected volumes of luminous gas confined therein and high-frequency electrical means for illuminating the gas, the tube being flexible and bendable throughout the length thereof to form desired designs and being of uniform transmittance throughout the length thereof.

2. An elongated plastic tube of light transmitting material having separated and unconnected volumes of luminous gas confined therein and high-frequency electrical means for illuminating the gas, the tube being flexible and bendable throughout the length thereof to form desired designs and being of uniform transmittance throughout the length thereof and the conning means for the gas volumes being of uniform transmittance throughout and unobstructed to permit of shedding of light from each volume of gas in all directions.

3. An elongated plastic tube of light transmitting material having separated and unconnected volumes of luminous gas confined therein, and high-frequency electrical means for illuminating the gas, the tube being exible and bendable throughout the length thereof to form desired designs and being of uniform transmittance throughout the length thereof, and the tube material being sufciently pliable for cutting at any point along the length thereof by means of a pair of scissors or thelike to provide smaller units of desired lengths, the separation between the volumes of gas allowing any one of said volumes to be cut without affecting the other volumes.

4. An elongated plastic tube of light transmitting material having separated and unconnected volumes of luminous gas confined therein, and high-frequency electrical means for illuminating the gas, the tube being flexible and bendable thoughout the length thereof to form desired designs and being of uniform transmittance throughout the length thereof, and the tube having two thin flexible wires mounted therein on opposite sides of the volumes of gas to serve as antennae for the high-frequency means.

5. A translucent plastic body having a large number of small separated and unconnected volumes of luminous gas confined therein, and highfrequency electrical means for illuminating the gas, said `body being sufficiently plastic to allow for cutting and sawing into desired shapes and the volumes of gas being so disconnected that only the volumes cut through are affected by the cutting.

6. A luminous body having separated and un` connected volumes of luminous gas confined therein in `spaced relation, the spaced relation being such that the emission from the separated volumes overlaps, one to another, and creates a substantially uniform intensity in close proximity to `the separated and unconnected volumes, and having means inside the body and external to the volumes for radiating high-frequency Waves to render the volumes luminous, said radiating means being arranged in such a manner as to result in non-interference with the overlapping emission of `the spaced volumes.

7. An elongated plastic tube of light transmit" ting material having separated and unconnected volumes of luminous gas conned therein adapted for illuminating by high-frequenc3f means, the tube being iiexible and bendable throughout the length thereof to form desired designs and being of uniform transmittance throughout the length thereof.

8 8. An elongated plastic tube of light transmitting material having separated and unconnected volumes of luminous gas confined therein adapted for illuminating by high-frequency means, thl tube being exible and bendable throughout the length thereof to form desired designs and being of uniform transmittance throughout the length thereof, and the tube having two thin 'exible Wires mounted therein on opposite sides of the volumes of gas to serve as antennae for the highfrequency means.

WALTER V. ETZKORN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,550,197 Berry Aug. 18, 1925 1,839,479 Hartman Jan. 5, 1932 2,064,354 Prouty Dec. 15, 1936 2,117,544 Coustal May 17, 1938 2,216,220 Baker Oct. l, 1.9/10 2,525,624 Stahl Oct. 10, 1950

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1550197 *Jun 6, 1923Aug 18, 1925Gen ElectricRadiation projector
US1839479 *Aug 20, 1928Jan 5, 1932Metro Light CorpElectric incandescent luminous tube
US2064354 *Oct 11, 1930Dec 15, 1936Metlox Corp LtdMultiple unit tube
US2117544 *Oct 29, 1935May 17, 1938Stella Lux SaLighting by sustained luminescence
US2216220 *Aug 25, 1937Oct 1, 1940Gen ElectricLuminous brick and construction comprising the same
US2525624 *Mar 13, 1946Oct 10, 1950William F StahlGlow lamp combination
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2774004 *Apr 8, 1953Dec 11, 1956Gen ElectricFlexible electroluminescent laminated panel
US2833964 *Mar 2, 1953May 6, 1958Walter V EtzkornLuminous bodies
US2909696 *Mar 3, 1955Oct 20, 1959Polaroid CorpElectric lamp
US2919361 *Apr 11, 1957Dec 29, 1959Annita T SpolterLight tubes and walls with radioactive cold cathodes
US2924734 *May 28, 1956Feb 9, 1960Siemens AgSpark gap device
US3050654 *Nov 6, 1957Aug 21, 1962Moore & HallImprovements in light source control and modulation
US3157823 *Jan 9, 1962Nov 17, 1964Etzon CorpLuminous bodies energized by standing waves
US3316380 *Apr 30, 1964Apr 25, 1967Gen Motors CorpEnergy distribution detector for microwave oven
US3509407 *Sep 15, 1967Apr 28, 1970Burroughs CorpDisplay panel
US3509421 *Sep 11, 1967Apr 28, 1970Burroughs CorpPlasma gas-filled display device
US3558975 *Feb 7, 1968Jan 26, 1971Burroughs CorpGas-filled matrix display devices
US3633023 *Mar 18, 1970Jan 4, 1972Gianfranco FrattiniElectric lighting apparatus, particularly for decorative uses
US3714414 *Feb 9, 1971Jan 30, 1973Sternius Akhegvlag & Co KbOrnamental lighting means
US3749904 *Feb 25, 1971Jul 31, 1973R GraffIlluminated wax form and method of making same
US3848248 *Apr 5, 1973Nov 12, 1974Sanders Associates IncGaseous discharge device
US3927342 *Nov 2, 1970Dec 16, 1975Owens Illinois IncCapillary tube gas discharge device
US3942859 *Nov 11, 1974Mar 9, 1976Korodi Miklos BElectrical conductor with light indicating means
US4027191 *Dec 16, 1970May 31, 1977Schaufele Robert FPhosphor geometry for color displays from a multiple gaseous discharge display/memory panel
US4035690 *Oct 25, 1974Jul 12, 1977Raytheon CompanyPlasma panel display device including spheroidal glass shells
US4107767 *Apr 29, 1977Aug 15, 1978Jacques AnquetinFlexible lighting strip
US4245282 *Jun 25, 1979Jan 13, 1981Sokol Peter LIlluminating device
US4297617 *Mar 24, 1980Oct 27, 1981Galaspie Charles ELight producing device
US4504766 *Aug 18, 1982Mar 12, 1985Murata Manufacturing Co., Ltd.Chip type discharge element with laminated insulating sheets
US4596681 *Jan 4, 1984Jun 24, 1986Gte Products CorporationMethod of forming capsules containing a precise amount of material
US4731560 *Feb 7, 1974Mar 15, 1988Owens-Illinois Television Products, Inc.Multiple gaseous discharge display/memory panel having improved operating life
US4794308 *May 29, 1987Dec 27, 1988Owens-Illinois Television Products Inc.Multiple gaseous discharge display/memory panel having improved operating life
US4918578 *Sep 30, 1988Apr 17, 1990Thompson Kenneth WLight piping displays
US5326298 *Mar 16, 1993Jul 5, 1994Minolta Camera Co., Ltd.Light emitter for giving plasma light emission
US5565733 *Mar 20, 1995Oct 15, 1996Durel CorporationElectroluminescent modular lamp unit
US5811930 *Oct 15, 1996Sep 22, 1998Durel CorporationElectroluminescent lamp devices and their manufacture
US5934792 *Feb 24, 1997Aug 10, 1999Itc, Inc.Flexible lighting system
US6042241 *Mar 5, 1998Mar 28, 2000Litton Systems, Inc.Backlight with integral illumination source
US6069444 *Feb 24, 1998May 30, 2000Durel CorporationElectroluminescent lamp devices and their manufacture
US6183102 *Mar 12, 1999Feb 6, 2001Global Products Sales And Marketing, L.L.C.Apparatus and method for producing a transparent tubular member containing a phosphorescent material
US6183328Jan 5, 1999Feb 6, 2001Sea Marshall Rescue Systems, Ltd. (Usa)Radio beacon that uses a light emitter as an antenna
US6864631Oct 15, 2002Mar 8, 2005Imaging Systems TechnologyGas discharge display device
US7122961Nov 29, 2005Oct 17, 2006Imaging Systems TechnologyPositive column tubular PDP
US7157854May 20, 2003Jan 2, 2007Imaging Systems TechnologyTubular PDP
US7176628May 19, 2005Feb 13, 2007Imaging Systems TechnologyPositive column tubular PDP
US7247989 *Jan 25, 2005Jul 24, 2007Imaging Systems Technology, IncGas discharge display
US7405516Apr 18, 2005Jul 29, 2008Imaging Systems TechnologyPlasma-shell PDP with organic luminescent substance
US7456571May 8, 2003Nov 25, 2008Imaging Systems TechnologyMicrosphere plasma display
US7535175Feb 2, 2007May 19, 2009Imaging Systems TechnologyElectrode configurations for plasma-dome PDP
US7595774Aug 24, 2005Sep 29, 2009Imaging Systems TechnologySimultaneous address and sustain of plasma-shell display
US7604523Jun 10, 2005Oct 20, 2009Imaging Systems TechnologyPlasma-shell PDP
US7619591Aug 23, 2005Nov 17, 2009Imaging Systems TechnologyAddressing and sustaining of plasma display with plasma-shells
US7622866Feb 2, 2006Nov 24, 2009Imaging Systems TechnologyPlasma-dome PDP
US7628666Feb 3, 2006Dec 8, 2009Imaging Systems TechnologyProcess for manufacturing plasma-dome PDP
US7638943Jan 30, 2006Dec 29, 2009Imaging Systems TechnologyPlasma-disc article of manufacture
US7679286Sep 5, 2006Mar 16, 2010Imaging Systems TechnologyPositive column tubular PDP
US7727040Jan 27, 2006Jun 1, 2010Imaging Systems TechnologyProcess for manufacturing plasma-disc PDP
US7730746Jul 10, 2006Jun 8, 2010Imaging Systems TechnologyApparatus to prepare discrete hollow microsphere droplets
US7772773Feb 2, 2007Aug 10, 2010Imaging Systems TechnologyElectrode configurations for plasma-dome PDP
US7772774Feb 8, 2007Aug 10, 2010Imaging Systems TechnologyPositive column plasma display tubular device
US7789725Oct 19, 2007Sep 7, 2010Science Applications International CorporationManufacture of light-emitting panels provided with texturized micro-components
US7791037Mar 9, 2007Sep 7, 2010Imaging Systems TechnologyPlasma-tube radiation detector
US7808178Feb 6, 2007Oct 5, 2010Imaging Systems TechnologyMethod of manufacture and operation
US7833076Jul 14, 2008Nov 16, 2010Imaging Systems Technology, Inc.Method of fabricating a plasma-shell PDP with combined organic and inorganic luminescent substances
US7863815Jan 19, 2007Jan 4, 2011Imaging Systems TechnologyElectrode configurations for plasma-disc PDP
US7923930Jul 23, 2007Apr 12, 2011Imaging Systems TechnologyPlasma-shell device
US7932674Feb 6, 2006Apr 26, 2011Imaging Systems TechnologyPlasma-dome article of manufacture
US7969092Mar 30, 2007Jun 28, 2011Imaging Systems Technology, Inc.Gas discharge display
US7978154Feb 5, 2007Jul 12, 2011Imaging Systems Technology, Inc.Plasma-shell for pixels of a plasma display
US8035303May 18, 2009Oct 11, 2011Imaging Systems TechnologyElectrode configurations for gas discharge device
US8106586May 31, 2008Jan 31, 2012Imaging Systems Technology, Inc.Plasma discharge display with fluorescent conversion material
US8110987Nov 21, 2008Feb 7, 2012Imaging Systems Technology, Inc.Microshell plasma display
US8113898Oct 8, 2009Feb 14, 2012Imaging Systems Technology, Inc.Gas discharge device with electrical conductive bonding material
US8129906Feb 26, 2009Mar 6, 2012Imaging Systems Technology, Inc.Lumino-shells
US8138673Nov 22, 2008Mar 20, 2012Imaging Systems TechnologyRadiation shielding
US8198811May 30, 2010Jun 12, 2012Imaging Systems TechnologyPlasma-Disc PDP
US8198812Jan 6, 2009Jun 12, 2012Imaging Systems TechnologyGas filled detector shell with dipole antenna
US8278824Aug 9, 2010Oct 2, 2012Imaging Systems Technology, Inc.Gas discharge electrode configurations
US8299696Dec 7, 2009Oct 30, 2012Imaging Systems TechnologyPlasma-shell gas discharge device
US8339041Nov 15, 2010Dec 25, 2012Imaging Systems Technology, Inc.Plasma-shell gas discharge device with combined organic and inorganic luminescent substances
US8368303Feb 13, 2012Feb 5, 2013Imaging Systems Technology, Inc.Gas discharge device with electrical conductive bonding material
US8410695Oct 4, 2010Apr 2, 2013Imaging Systems TechnologyGas discharge device incorporating gas-filled plasma-shell and method of manufacturing thereof
US8618733Jan 3, 2011Dec 31, 2013Imaging Systems Technology, Inc.Electrode configurations for plasma-shell gas discharge device
USRE38475 *Feb 22, 2002Mar 23, 2004David Marshall Rescue Concepts, LLCRadio beacon that uses a light emitter as an antenna
DE1231352B *Nov 6, 1964Dec 29, 1966Dymo Industries IncHochfrequenzerregte Lichtquelle
EP1535268A2 *Jul 23, 2003Jun 1, 2005Science Applications International CorporationDesign, fabrication, testing, and conditioning of micro-components for use in a light-emitting panel
WO1988004876A1 *Dec 16, 1987Jun 30, 1988Richard M MiltonAn illuminated aerial marker
WO1989004531A1 *Nov 2, 1987May 18, 1989Michael GarjianImproved luminous sign
WO1989006861A1 *Jan 16, 1989Jul 27, 1989Scott Graham M AFluorescent tubes
WO1994014180A1 *Dec 14, 1993Jun 23, 1994Durel CorpElectroluminescent lamp devices and their manufacture
WO1998037361A1 *Feb 24, 1998Aug 27, 1998Richard J CamarotaFlexible lighting system and mounting arrangement
Classifications
U.S. Classification315/228, 313/485, 362/84, 313/1, 315/187, 362/260, 219/748, 445/22, 313/607, 315/250, 445/24
International ClassificationH01J61/92, H05B41/44, H01J61/30, H01J65/04, F21Y103/00, H01J61/64, G09F13/26, H01J17/49, H01R33/00, F21S4/00, F21K99/00
Cooperative ClassificationF21K99/00, G09F13/26, F21S4/003, H01J65/042
European ClassificationG09F13/26, F21S4/00L, H01J65/04A, F21K99/00