WO2002071148A3 - Projection screens - Google Patents

Projection screens Download PDF

Info

Publication number
WO2002071148A3
WO2002071148A3 PCT/US2001/050564 US0150564W WO02071148A3 WO 2002071148 A3 WO2002071148 A3 WO 2002071148A3 US 0150564 W US0150564 W US 0150564W WO 02071148 A3 WO02071148 A3 WO 02071148A3
Authority
WO
WIPO (PCT)
Prior art keywords
polymeric material
refraction
screen
polymeric
index
Prior art date
Application number
PCT/US2001/050564
Other languages
French (fr)
Other versions
WO2002071148A8 (en
WO2002071148A2 (en
Inventor
Jiaying Ma
Zhiming Zhou
Robert S Moshrefzadeh
Albert I Everaerts
Original Assignee
3M Innovative Properties Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to EP01271074A priority Critical patent/EP1352292B1/en
Priority to JP2002570005A priority patent/JP2004519720A/en
Priority to KR10-2003-7009451A priority patent/KR20030068589A/en
Priority to DE60117689T priority patent/DE60117689T2/en
Publication of WO2002071148A2 publication Critical patent/WO2002071148A2/en
Publication of WO2002071148A3 publication Critical patent/WO2002071148A3/en
Publication of WO2002071148A8 publication Critical patent/WO2002071148A8/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/602—Lenticular screens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G03B21/625—Lenticular translucent screens

Abstract

A light managing screen may provide a rear projection screen, front projection screen or component thereof. The screen may comprise a polymeric composition including a first polymeric material, and a second polymeric material disposed as a plurality of elongated structures within the first polymeric material. Each elongated structure has a major axis and the major axes are substantially aligned. The first polymeric material has an index of refraction that differs by at least 0.01 from an index of refraction of the second polymeric material. In some instances, a pressure sensitive adhesive material is selected as the first polymeric material. The orientation of the elongated structures and the difference in indices of refraction results in the polymeric composition scattering light asymmetrically.
PCT/US2001/050564 2001-01-17 2001-12-21 Projection screens WO2002071148A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP01271074A EP1352292B1 (en) 2001-01-17 2001-12-21 Projection screens
JP2002570005A JP2004519720A (en) 2001-01-17 2001-12-21 Projection screen
KR10-2003-7009451A KR20030068589A (en) 2001-01-17 2001-12-21 Projection screens
DE60117689T DE60117689T2 (en) 2001-01-17 2001-12-21 PROJECTION SCREENS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/761,896 2001-01-17
US09/761,896 US6819486B2 (en) 2001-01-17 2001-01-17 Projection screen having elongated structures

Publications (3)

Publication Number Publication Date
WO2002071148A2 WO2002071148A2 (en) 2002-09-12
WO2002071148A3 true WO2002071148A3 (en) 2002-10-17
WO2002071148A8 WO2002071148A8 (en) 2003-11-13

Family

ID=25063541

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/050564 WO2002071148A2 (en) 2001-01-17 2001-12-21 Projection screens

Country Status (9)

Country Link
US (3) US6819486B2 (en)
EP (1) EP1352292B1 (en)
JP (1) JP2004519720A (en)
KR (1) KR20030068589A (en)
CN (2) CN1486448A (en)
AT (1) ATE320025T1 (en)
DE (1) DE60117689T2 (en)
DK (1) DK1352292T3 (en)
WO (1) WO2002071148A2 (en)

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Also Published As

Publication number Publication date
DE60117689D1 (en) 2006-05-04
KR20030068589A (en) 2003-08-21
CN1486448A (en) 2004-03-31
WO2002071148A8 (en) 2003-11-13
EP1352292B1 (en) 2006-03-08
US20050036199A1 (en) 2005-02-17
US20020163719A1 (en) 2002-11-07
WO2002071148A2 (en) 2002-09-12
DE60117689T2 (en) 2006-11-09
US6819486B2 (en) 2004-11-16
CN101251711A (en) 2008-08-27
US6940643B2 (en) 2005-09-06
US7405857B2 (en) 2008-07-29
ATE320025T1 (en) 2006-03-15
DK1352292T3 (en) 2006-05-22
JP2004519720A (en) 2004-07-02
US20050286124A1 (en) 2005-12-29
EP1352292A2 (en) 2003-10-15

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