DE3789340D1 - Rückprojektionsschirm mit verbesserter Leuchtdichtengleichmässigkeit. - Google Patents

Rückprojektionsschirm mit verbesserter Leuchtdichtengleichmässigkeit.

Info

Publication number
DE3789340D1
DE3789340D1 DE87201752T DE3789340T DE3789340D1 DE 3789340 D1 DE3789340 D1 DE 3789340D1 DE 87201752 T DE87201752 T DE 87201752T DE 3789340 T DE3789340 T DE 3789340T DE 3789340 D1 DE3789340 D1 DE 3789340D1
Authority
DE
Germany
Prior art keywords
projection screen
rear projection
luminance uniformity
improved luminance
improved
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
Application number
DE87201752T
Other languages
English (en)
Other versions
DE3789340T2 (de
Inventor
Ralph Hampton Bradley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips North America LLC
Original Assignee
Philips Electronics North America 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 Electronics North America Corp filed Critical Philips Electronics North America Corp
Application granted granted Critical
Publication of DE3789340D1 publication Critical patent/DE3789340D1/de
Publication of DE3789340T2 publication Critical patent/DE3789340T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE3789340T 1986-09-18 1987-09-14 Rückprojektionsschirm mit verbesserter Leuchtdichtengleichmässigkeit. Expired - Fee Related DE3789340T2 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
DE3789340D1 true DE3789340D1 (de) 1994-04-21
DE3789340T2 DE3789340T2 (de) 1994-09-22

Family

ID=25428227

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3789340T Expired - Fee Related DE3789340T2 (de) 1986-09-18 1987-09-14 Rückprojektionsschirm mit verbesserter Leuchtdichtengleichmässigkeit.

Country Status (6)

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

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
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
JPH0387731A (ja) * 1988-11-29 1991-04-12 Canon Inc 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
DE69230036T2 (de) * 1991-07-03 2000-01-05 Sun Microsystems Inc Anzeigegeraet fuer virtuelle bilder
US5551042A (en) * 1993-04-26 1996-08-27 Minnesota Mining And Manufacturing Company Structured films and use thereof for daylight illumination
DK0913728T3 (da) * 1993-06-14 2002-04-15 Dainippon Printing Co Ltd Projektionsskærm
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
AU7899600A (en) * 1999-10-18 2001-04-30 Bolin Sun Large sized rear projection screen
US7018052B2 (en) 2000-08-30 2006-03-28 Reflectivity, Inc 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 (de) * 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
EP0260758B1 (de) 1994-03-16
DE3789340T2 (de) 1994-09-22
KR880004538A (ko) 1988-06-07
US4701020A (en) 1987-10-20
KR950012701B1 (ko) 1995-10-20
JPH083603B2 (ja) 1996-01-17
DK170846B1 (da) 1996-02-05
JPS63132228A (ja) 1988-06-04
DK483287D0 (da) 1987-09-15
EP0260758A3 (en) 1988-08-24
DK483287A (da) 1988-03-19
EP0260758A2 (de) 1988-03-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: VOLMER, G., DIPL.-ING., PAT.-ANW., 52066 AACHEN

8339 Ceased/non-payment of the annual fee