WO1996021883A3 - Ecran de projection - Google Patents

Ecran de projection Download PDF

Info

Publication number
WO1996021883A3
WO1996021883A3 PCT/SE1996/000019 SE9600019W WO9621883A3 WO 1996021883 A3 WO1996021883 A3 WO 1996021883A3 SE 9600019 W SE9600019 W SE 9600019W WO 9621883 A3 WO9621883 A3 WO 9621883A3
Authority
WO
WIPO (PCT)
Prior art keywords
wavelengths
light
coated
filter
projection screen
Prior art date
Application number
PCT/SE1996/000019
Other languages
English (en)
Other versions
WO1996021883A2 (fr
Inventor
Stig Berglund
Original Assignee
Nova Onab Optica Ab
Stig Berglund
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
Priority claimed from SE9500149A external-priority patent/SE9500149D0/xx
Priority claimed from SE9502529A external-priority patent/SE9502529D0/xx
Priority claimed from SE9503107A external-priority patent/SE9503107D0/xx
Application filed by Nova Onab Optica Ab, Stig Berglund filed Critical Nova Onab Optica Ab
Publication of WO1996021883A2 publication Critical patent/WO1996021883A2/fr
Publication of WO1996021883A3 publication Critical patent/WO1996021883A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3164—Modulator illumination systems using multiple light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/363—Image reproducers using image projection 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
    • G03B21/604—Polarised 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
    • G03B21/606—Projection screens characterised by the nature of the surface for relief projection
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/324—Colour aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/337—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • H04N9/3108—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators by using a single electronic spatial light modulator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/365—Image reproducers using digital micromirror devices [DMD]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Projection Apparatus (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Liquid Crystal (AREA)

Abstract

L'écran de projection (11), selon l'invention, est composé d'une surface irrégulière (43) qui absorbe la lumière ou qui a été revêtue d'un film absorbant la lumière (42), lequel a été à son tour recouvert d'un filtre (41). La transformation de Fourier appliquée à ladite surface irrégulière (43) peut fournir un spectre significatif à des fréquences considérablement supérieures aux fréquences obtenues lorsque la transformation de Fourier est appliquée à la structure à nombre de pixels plus élevés projetée sur l'image, et le coefficient de réflexion (8), pour le filtre (41), est supérieur en ce qui concerne les longueurs d'ondes correspondant à celles de la lumière qui éclaire l'image (R, V, B), à celui obtenu lorsque les longueurs d'onde se trouvent en dehors de celles de ladite lumière.
PCT/SE1996/000019 1995-01-14 1996-01-12 Ecran de projection WO1996021883A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9500149A SE9500149D0 (sv) 1995-01-14 1995-01-14 Färg-TV-projektor
SE9502529A SE9502529D0 (sv) 1995-07-10 1995-07-10 Digital TV- och multimedia-projektor
SE9503107A SE9503107D0 (sv) 1995-07-10 1995-09-08 Digital HDTV- och multimedia-projektor

Publications (2)

Publication Number Publication Date
WO1996021883A2 WO1996021883A2 (fr) 1996-07-18
WO1996021883A3 true WO1996021883A3 (fr) 1996-09-12

Family

ID=27355767

Family Applications (5)

Application Number Title Priority Date Filing Date
PCT/SE1996/000019 WO1996021883A2 (fr) 1995-01-14 1996-01-12 Ecran de projection
PCT/SE1996/000016 WO1996021996A2 (fr) 1995-01-14 1996-01-12 Separation de la lumiere en pixels couleur dans un dispositif de projection
PCT/SE1996/000017 WO1996021997A2 (fr) 1995-01-14 1996-01-12 Projection en relief
PCT/SE1996/000015 WO1996021995A2 (fr) 1995-01-14 1996-01-12 Systeme de projection
PCT/SE1996/000018 WO1996021992A2 (fr) 1995-01-14 1996-01-12 Procede de reproduction d'images avec un nombre accru de couleurs

Family Applications After (4)

Application Number Title Priority Date Filing Date
PCT/SE1996/000016 WO1996021996A2 (fr) 1995-01-14 1996-01-12 Separation de la lumiere en pixels couleur dans un dispositif de projection
PCT/SE1996/000017 WO1996021997A2 (fr) 1995-01-14 1996-01-12 Projection en relief
PCT/SE1996/000015 WO1996021995A2 (fr) 1995-01-14 1996-01-12 Systeme de projection
PCT/SE1996/000018 WO1996021992A2 (fr) 1995-01-14 1996-01-12 Procede de reproduction d'images avec un nombre accru de couleurs

Country Status (1)

Country Link
WO (5) WO1996021883A2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924519A1 (de) 1999-04-12 2000-10-19 Deutsche Telekom Ag Verfahren und Vorrichtung zur Reduktion der Speckelsbildung an einem Projektionsschirm
WO2000062114A1 (fr) * 1999-04-12 2000-10-19 Deutsche Telekom Ag Procede et dispositif permettant de reduire la formation de speckle sur un ecran de projection
JP2001339742A (ja) * 2000-03-21 2001-12-07 Olympus Optical Co Ltd 立体映像プロジェクション装置、及びその補正量演算装置
CN100573312C (zh) 2001-12-13 2009-12-23 索尼公司 屏幕、屏幕的制造方法和图像显示系统
JP4111011B2 (ja) 2002-03-14 2008-07-02 ソニー株式会社 投影用スクリーン
US7597447B2 (en) 2004-07-14 2009-10-06 Honeywell International Inc. Color correcting contrast enhancement of displays
DE102007011561B4 (de) * 2007-03-02 2016-03-17 Seereal Technologies S.A. Einrichtung zur Korrektur der Wellenlängenabhängigkeit in beugungsbasierten optischen Systemen
DE102007011560A1 (de) * 2007-03-02 2008-09-04 Seereal Technologies S.A. Vorrichtung zur Minimierung der verbeugungsbedingten Dispersion in Lichtmodulatoren
CN108227353B (zh) * 2016-12-14 2020-12-22 中强光电股份有限公司 光源模块以及投影装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214638A1 (de) * 1971-03-29 1972-10-12 Hubbard N Projektionsschirm
DE2718065A1 (de) * 1976-04-23 1977-11-10 Conrad R Schudel Projektionsschirm
WO1994022049A1 (fr) * 1993-03-23 1994-09-29 Optica Nova Onab Ab Ecran de projection

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214021A1 (de) * 1982-04-16 1983-10-20 Bruker Analytische Meßtechnik GmbH, 7512 Rheinstetten Vorrichtung zur erzeugung und darstellung dreidimensionaler bilder
DE3381342D1 (de) * 1982-09-29 1990-04-19 Honeywell Inc Stereofernsehsystem.
US5272473A (en) * 1989-02-27 1993-12-21 Texas Instruments Incorporated Reduced-speckle display system
CN1017192B (zh) * 1989-03-23 1992-06-24 清华大学 激光散斑接触网屏及制造用的光学系统
EP0454273B1 (fr) * 1990-04-26 1996-02-14 Bayer Corporation Base de données de couleurs RVB et procédé pour la génération de celle-ci
US5317426A (en) * 1990-11-26 1994-05-31 Konica Corporation Color estimation method for expanding a color image for reproduction in a different color gamut
JP3071947B2 (ja) * 1992-06-12 2000-07-31 シャープ株式会社 投影型カラー画像表示装置
US5313479A (en) * 1992-07-29 1994-05-17 Texas Instruments Incorporated Speckle-free display system using coherent light
US5500921A (en) * 1992-10-05 1996-03-19 Canon Information Systems, Inc. Method and apparatus for printing high fidelity color reproductions of colors displayed on a monitor
JPH06202096A (ja) * 1992-12-28 1994-07-22 Sony Corp 映像プロジェクタ装置
US5323249A (en) * 1993-01-12 1994-06-21 E. I. Du Pont De Nemours And Company Method for reproducing color images having one color gamut with a device having a different color gamut
EP0626783B1 (fr) * 1993-05-28 1998-10-28 Eastman Kodak Company Procédé et appareil pour déteminer les limites de la gamme et dispositif de description de la gamme
US5534950A (en) * 1993-10-04 1996-07-09 Laser Power Corporation High resolution image projection system and method employing lasers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214638A1 (de) * 1971-03-29 1972-10-12 Hubbard N Projektionsschirm
DE2718065A1 (de) * 1976-04-23 1977-11-10 Conrad R Schudel Projektionsschirm
WO1994022049A1 (fr) * 1993-03-23 1994-09-29 Optica Nova Onab Ab Ecran de projection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 14, No. 72, P-1004; & JP,A,01 289 940 (SEIKO EPSON CORP), 21 November 1989. *

Also Published As

Publication number Publication date
WO1996021995A3 (fr) 1996-09-19
WO1996021992A3 (fr) 1996-09-19
WO1996021995A2 (fr) 1996-07-18
WO1996021997A2 (fr) 1996-07-18
WO1996021992A2 (fr) 1996-07-18
WO1996021996A3 (fr) 1996-09-12
WO1996021996A2 (fr) 1996-07-18
WO1996021997A3 (fr) 1996-09-12
WO1996021883A2 (fr) 1996-07-18

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