DE69424011D1 - Polarisierender Projektionsschirm - Google Patents
Polarisierender ProjektionsschirmInfo
- Publication number
- DE69424011D1 DE69424011D1 DE69424011T DE69424011T DE69424011D1 DE 69424011 D1 DE69424011 D1 DE 69424011D1 DE 69424011 T DE69424011 T DE 69424011T DE 69424011 T DE69424011 T DE 69424011T DE 69424011 D1 DE69424011 D1 DE 69424011D1
- Authority
- DE
- Germany
- Prior art keywords
- projection screen
- polarizing projection
- polarizing
- screen
- projection
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
-
- 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
- G03B21/604—Polarised screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5238171A JPH0792566A (ja) | 1993-09-24 | 1993-09-24 | 偏光スクリーン |
JP5350201A JPH07199355A (ja) | 1993-12-28 | 1993-12-28 | 反射型偏光スクリーン |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69424011D1 true DE69424011D1 (de) | 2000-05-25 |
DE69424011T2 DE69424011T2 (de) | 2000-09-14 |
Family
ID=26533558
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69432648T Expired - Fee Related DE69432648T2 (de) | 1993-09-24 | 1994-09-23 | Polarisierender Projektionsschirm |
DE69424011T Expired - Fee Related DE69424011T2 (de) | 1993-09-24 | 1994-09-23 | Polarisierender Projektionsschirm |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69432648T Expired - Fee Related DE69432648T2 (de) | 1993-09-24 | 1994-09-23 | Polarisierender Projektionsschirm |
Country Status (4)
Country | Link |
---|---|
US (1) | US5444570A (de) |
EP (2) | EP0645666B1 (de) |
KR (1) | KR0142032B1 (de) |
DE (2) | DE69432648T2 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996019752A1 (en) * | 1994-12-22 | 1996-06-27 | Philips Electronics N.V. | Presentation system with overhead projector |
KR100443773B1 (ko) * | 2001-10-09 | 2004-08-09 | 전형진 | 디스플레이용 스크린 |
WO2004066005A1 (en) * | 2003-01-20 | 2004-08-05 | Samyang Corporation | Plastic optical fiber display screen and manufacturing method thereof |
US7234817B2 (en) * | 2003-07-17 | 2007-06-26 | Nitto Denko Corporation | Liquid crystal projection system |
US7158299B2 (en) * | 2003-09-26 | 2007-01-02 | Dai Nippon Printing Co., Ltd. | Projection screen and projection system comprising the same |
US7406239B2 (en) * | 2005-02-28 | 2008-07-29 | 3M Innovative Properties Company | Optical elements containing a polymer fiber weave |
US7362943B2 (en) * | 2005-02-28 | 2008-04-22 | 3M Innovative Properties Company | Polymeric photonic crystals with co-continuous phases |
US7386212B2 (en) * | 2005-02-28 | 2008-06-10 | 3M Innovative Properties Company | Polymer photonic crystal fibers |
US7356229B2 (en) * | 2005-02-28 | 2008-04-08 | 3M Innovative Properties Company | Reflective polarizers containing polymer fibers |
US20060193578A1 (en) * | 2005-02-28 | 2006-08-31 | Ouderkirk Andrew J | Composite polymeric optical films with co-continuous phases |
US7356231B2 (en) * | 2005-02-28 | 2008-04-08 | 3M Innovative Properties Company | Composite polymer fibers |
US20070281143A1 (en) * | 2006-06-05 | 2007-12-06 | Aylward Peter T | Diffusely-reflecting element and method of making |
US7773834B2 (en) | 2006-08-30 | 2010-08-10 | 3M Innovative Properties Company | Multilayer polarizing fibers and polarizers using same |
US20080057277A1 (en) * | 2006-08-30 | 2008-03-06 | 3M Innovative Properties Company | Polymer fiber polarizers |
US7599592B2 (en) * | 2006-08-30 | 2009-10-06 | 3M Innovative Properties Company | Polymer fiber polarizers with aligned fibers |
DE102006048473A1 (de) * | 2006-10-11 | 2008-04-17 | Sefar Ag | Rückprojektionsgewebe, Rückprojektionsbildwand und Rückprojektionssystem |
JP4234181B1 (ja) * | 2007-08-23 | 2009-03-04 | 株式会社村田製作所 | ワイヤーグリッドおよびその製造方法 |
NL2002591C2 (nl) * | 2009-03-04 | 2010-09-07 | Blibblib Invest B V | Projectiescherm, alsmede werkwijze voor het vervaardigen daarvan. |
US9044863B2 (en) | 2013-02-06 | 2015-06-02 | Steelcase Inc. | Polarized enhanced confidentiality in mobile camera applications |
US11221497B2 (en) | 2017-06-05 | 2022-01-11 | Steelcase Inc. | Multiple-polarization cloaking |
US11106124B2 (en) | 2018-02-27 | 2021-08-31 | Steelcase Inc. | Multiple-polarization cloaking for projected and writing surface view screens |
CN111989617A (zh) * | 2018-04-16 | 2020-11-24 | 日东电工株式会社 | 房间 |
CN112114489A (zh) * | 2019-06-19 | 2020-12-22 | 青岛海信激光显示股份有限公司 | 投影屏幕、投影***及投影屏幕的装配方法 |
CN112654923A (zh) * | 2020-04-08 | 2021-04-13 | 深圳市光科全息技术有限公司 | 投影幕及投影*** |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2380241A (en) * | 1942-03-21 | 1945-07-10 | Eastman Kodak Co | Viewing system |
US2362573A (en) * | 1942-06-03 | 1944-11-14 | Eastman Kodak Co | Projection screen |
US2793361A (en) * | 1954-06-18 | 1957-05-21 | Carroll T White | Cross-polarized lighting technique for improving operation of cathode-ray tube displays |
US3319519A (en) * | 1962-08-23 | 1967-05-16 | Morris V Shelanski | Polarized image-projection system |
US4928123A (en) * | 1987-06-16 | 1990-05-22 | Sharp Kabushiki Kaisha | Projection type liquid crystal display device |
IL83752A (en) * | 1987-09-02 | 1992-03-29 | Ibm Israel | Method and apparatus for transmitting and receiving 3-dimensional video images |
US5086354A (en) * | 1989-02-27 | 1992-02-04 | Bass Robert E | Three dimensional optical viewing system |
JP2762675B2 (ja) * | 1990-04-19 | 1998-06-04 | 松下電器産業株式会社 | スクリーン |
US5148309A (en) * | 1990-12-14 | 1992-09-15 | Toppan Printing Co., Ltd. | Reflective type screen |
US5251065A (en) * | 1991-07-31 | 1993-10-05 | Kuraray Co., Ltd. | Polarizing screen and projector using the same |
JP3128919B2 (ja) * | 1992-02-04 | 2001-01-29 | 凸版印刷株式会社 | 反射投影型スクリーン |
JP3318378B2 (ja) * | 1992-12-29 | 2002-08-26 | 株式会社クラレ | 反射型スクリーン |
JPH06235817A (ja) * | 1993-02-10 | 1994-08-23 | Kuraray Co Ltd | 偏光布の製造方法 |
-
1994
- 1994-09-13 KR KR1019940023079A patent/KR0142032B1/ko not_active IP Right Cessation
- 1994-09-23 US US08/311,187 patent/US5444570A/en not_active Expired - Fee Related
- 1994-09-23 EP EP94115007A patent/EP0645666B1/de not_active Expired - Lifetime
- 1994-09-23 DE DE69432648T patent/DE69432648T2/de not_active Expired - Fee Related
- 1994-09-23 EP EP99113599A patent/EP0965878B1/de not_active Expired - Lifetime
- 1994-09-23 DE DE69424011T patent/DE69424011T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0645666A1 (de) | 1995-03-29 |
DE69432648T2 (de) | 2003-11-27 |
EP0965878B1 (de) | 2003-05-07 |
EP0645666B1 (de) | 2000-04-19 |
KR0142032B1 (ko) | 1998-07-01 |
US5444570A (en) | 1995-08-22 |
DE69432648D1 (de) | 2003-06-12 |
DE69424011T2 (de) | 2000-09-14 |
EP0965878A1 (de) | 1999-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |