DK483287D0 - Bagprojektionsskaerm med forbedret luminansensartethed - Google Patents

Bagprojektionsskaerm med forbedret luminansensartethed

Info

Publication number
DK483287D0
DK483287D0 DK483287A DK483287A DK483287D0 DK 483287 D0 DK483287 D0 DK 483287D0 DK 483287 A DK483287 A DK 483287A DK 483287 A DK483287 A DK 483287A DK 483287 D0 DK483287 D0 DK 483287D0
Authority
DK
Denmark
Prior art keywords
projection screen
rear projection
improved luminance
luminance sensitivity
sensitivity
Prior art date
Application number
DK483287A
Other languages
English (en)
Other versions
DK483287A (da
DK170846B1 (da
Inventor
Ralph Hampton Bradley
Original Assignee
Philips Corp
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 Philips Corp filed Critical Philips Corp
Publication of DK483287D0 publication Critical patent/DK483287D0/da
Publication of DK483287A publication Critical patent/DK483287A/da
Application granted granted Critical
Publication of DK170846B1 publication Critical patent/DK170846B1/da

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
DK483287A 1986-09-18 1987-09-15 Bagprojektionsskærm med forbedret luminansensartethed DK170846B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91004686 1986-09-18
US06/910,046 US4701020A (en) 1986-09-18 1986-09-18 Rear projection screen with improved luminance uniformity

Publications (3)

Publication Number Publication Date
DK483287D0 true DK483287D0 (da) 1987-09-15
DK483287A DK483287A (da) 1988-03-19
DK170846B1 DK170846B1 (da) 1996-02-05

Family

ID=25428227

Family Applications (1)

Application Number Title Priority Date Filing Date
DK483287A DK170846B1 (da) 1986-09-18 1987-09-15 Bagprojektionsskærm med forbedret luminansensartethed

Country Status (6)

Country Link
US (1) US4701020A (da)
EP (1) EP0260758B1 (da)
JP (1) JPH083603B2 (da)
KR (1) KR950012701B1 (da)
DE (1) DE3789340T2 (da)
DK (1) DK170846B1 (da)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03213840A (ja) * 1988-11-22 1991-09-19 Canon Inc 背面投射型スクリーン及びこれを用いた背面投射型画像表示装置
US4964695A (en) * 1987-10-06 1990-10-23 North American Philips Corporation Lenticular arrays for front projection screens and contrast improving method and device
JP2731169B2 (ja) * 1988-07-18 1998-03-25 株式会社日立製作所 近距離観視用投写形ディスプレイ装置
US5208620A (en) * 1988-10-04 1993-05-04 Canon Kabushiki Kaisha Display apparatus
US5390050A (en) * 1988-11-10 1995-02-14 Canon Kabushiki Kaisha Eccentric Fresnel lens sheet and method of making same
JPH0387731A (ja) * 1988-11-29 1991-04-12 Canon Inc 画像表示装置
JPH03213841A (ja) * 1988-11-29 1991-09-19 Canon Inc 背面投射型スクリーン及び画像表示装置
JP2513524Y2 (ja) * 1990-03-08 1996-10-09 カシオ計算機株式会社 透過型スクリ―ン
US5123728A (en) * 1991-03-18 1992-06-23 Sony Trans Com, Inc. Rear screen video projection system for aircraft passenger entertainment
CA2112682C (en) * 1991-07-03 2002-04-23 Michael A. Teitel Virtual image display device
US5551042A (en) * 1993-04-26 1996-08-27 Minnesota Mining And Manufacturing Company Structured films and use thereof for daylight illumination
US5477380A (en) * 1993-06-14 1995-12-19 Dai Nippon Printing Co., Ltd. Projection screen
US5481385A (en) * 1993-07-01 1996-01-02 Alliedsignal Inc. Direct view display device with array of tapered waveguide on viewer side
US5521726A (en) * 1994-08-26 1996-05-28 Alliedsignal Inc. Polarizer with an array of tapered waveguides
US5657408A (en) * 1994-12-23 1997-08-12 Alliedsignal Inc. Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein
US5642226A (en) * 1995-01-18 1997-06-24 Rosenthal; Bruce A. Lenticular optical system
US5959701A (en) * 1995-04-25 1999-09-28 Kuraray Co., Ltd. Projection type display device
US6969635B2 (en) 2000-12-07 2005-11-29 Reflectivity, Inc. Methods for depositing, releasing and packaging micro-electromechanical devices on wafer substrates
US5648873A (en) * 1996-05-30 1997-07-15 Minnesota Mining And Manufacturing Company Passive solar collector
US6256947B1 (en) * 1998-06-04 2001-07-10 Solatube International, Inc. Method and apparatus for a tubular skylight system
US6962419B2 (en) 1998-09-24 2005-11-08 Reflectivity, Inc Micromirror elements, package for the micromirror elements, and projection system therefor
WO2001029614A1 (fr) * 1999-10-18 2001-04-26 Bolin Sun Ecran de projection de grande dimension
US7196740B2 (en) 2000-08-30 2007-03-27 Texas Instruments Incorporated Projection TV with improved micromirror array
US7023606B2 (en) 2001-08-03 2006-04-04 Reflectivity, Inc Micromirror array for projection TV
US7042622B2 (en) 2003-10-30 2006-05-09 Reflectivity, Inc Micromirror and post arrangements on substrates
US20060181770A1 (en) * 2005-02-15 2006-08-17 K Laser Technology, Inc. Rear projection screen with spatial varying diffusing angle
US7936506B2 (en) * 2007-02-20 2011-05-03 Texas Instruments Incorporated System and method for displaying images
KR101575313B1 (ko) 2013-12-19 2015-12-08 현대자동차 주식회사 디스플레이 장치 및 이를 이용한 디스플레이 방법
JP7087806B2 (ja) * 2018-08-08 2022-06-21 大日本印刷株式会社 映像表示システム

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1118703A (fr) * 1955-02-04 1956-06-11 Tevox écran de projection à projection arrière et son procédé de fabrication
JPS487050Y1 (da) * 1968-10-28 1973-02-23
US3580661A (en) * 1969-04-10 1971-05-25 Bell & Howell Co Rear projection viewing screen for close viewing
US3982822A (en) * 1975-03-03 1976-09-28 Minnesota Mining And Manufacturing Company Composite Fresnel lens assembly
JPS583530B2 (ja) * 1975-02-28 1983-01-21 ソニー株式会社 リアプロジエクシヨンシキトウエイソウチ
US4147408A (en) * 1976-12-23 1979-04-03 Polaroid Corporation Back projection viewing screen
US4374609A (en) * 1981-05-21 1983-02-22 Zenith Radio Corporation Image projection screen with decreased color shift as a function of viewing angle, and method of manufacture
JPS58153924A (ja) * 1982-03-10 1983-09-13 Hitachi Ltd 投写用スクリン
US4452509A (en) * 1982-04-28 1984-06-05 Rca Corporation Projection television screen having a selected audience envelope
JPS5915925A (ja) * 1982-07-19 1984-01-27 Mitsubishi Rayon Co Ltd 背面投影スクリ−ン
JPS59111137A (ja) * 1982-12-15 1984-06-27 Dainippon Printing Co Ltd 透過型スクリ−ン
US4512631A (en) * 1983-04-21 1985-04-23 Rca Corporation Rear projection television screen incorporating a prism lens
US4573764A (en) * 1983-12-30 1986-03-04 North American Philips Consumer Electronics Corp. Rear projection screen

Also Published As

Publication number Publication date
DK483287A (da) 1988-03-19
JPH083603B2 (ja) 1996-01-17
KR950012701B1 (ko) 1995-10-20
KR880004538A (ko) 1988-06-07
EP0260758B1 (en) 1994-03-16
EP0260758A3 (en) 1988-08-24
EP0260758A2 (en) 1988-03-23
JPS63132228A (ja) 1988-06-04
DE3789340D1 (de) 1994-04-21
DE3789340T2 (de) 1994-09-22
DK170846B1 (da) 1996-02-05
US4701020A (en) 1987-10-20

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed

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