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WO1996021996A3 - Colour pixel light separation in a projection device - Google Patents

Colour pixel light separation in a projection device Download PDF

Info

Publication number
WO1996021996A3
WO1996021996A3 PCT/SE1996/000016 SE9600016W WO9621996A3 WO 1996021996 A3 WO1996021996 A3 WO 1996021996A3 SE 9600016 W SE9600016 W SE 9600016W WO 9621996 A3 WO9621996 A3 WO 9621996A3
Authority
WO
WIPO (PCT)
Prior art keywords
generating device
image generating
light separation
pixel light
colour pixel
Prior art date
Application number
PCT/SE1996/000016
Other languages
French (fr)
Other versions
WO1996021996A2 (en
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/en
Priority claimed from SE9502529A external-priority patent/SE9502529D0/en
Priority claimed from SE9503107A external-priority patent/SE9503107D0/en
Application filed by Nova Onab Optica Ab, Stig Berglund filed Critical Nova Onab Optica Ab
Publication of WO1996021996A2 publication Critical patent/WO1996021996A2/en
Publication of WO1996021996A3 publication Critical patent/WO1996021996A3/en

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)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Projection Apparatus (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

A projection arrangement and a method for colour pixel light separation giving a side-displaced position of the projected picture on a screen (11). Light from several colours, e.g. generated by laser diodes (2), is transmitted through an image generating device (1K, 2K) and a projection lens (7). The image generating device (1K, 2K) is preferably a LCD of dispersive type. The side-displaced positioning of the picture is achieved either by means of microprisms, tilted microlenses and/or diffractive optical elements on the exit side of the image generating device (1K, 2K) or an off-axis field lens.
PCT/SE1996/000016 1995-01-14 1996-01-12 Colour pixel light separation in a projection device WO1996021996A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9500149A SE9500149D0 (en) 1995-01-14 1995-01-14 Color TV Projector
SE9502529A SE9502529D0 (en) 1995-07-10 1995-07-10 Digital TV and multimedia projector
SE9503107A SE9503107D0 (en) 1995-07-10 1995-09-08 Digital HDTV and multimedia projector

Publications (2)

Publication Number Publication Date
WO1996021996A2 WO1996021996A2 (en) 1996-07-18
WO1996021996A3 true WO1996021996A3 (en) 1996-09-12

Family

ID=27355767

Family Applications (5)

Application Number Title Priority Date Filing Date
PCT/SE1996/000016 WO1996021996A2 (en) 1995-01-14 1996-01-12 Colour pixel light separation in a projection device
PCT/SE1996/000015 WO1996021995A2 (en) 1995-01-14 1996-01-12 Projection arrangement
PCT/SE1996/000019 WO1996021883A2 (en) 1995-01-14 1996-01-12 Projection screen
PCT/SE1996/000017 WO1996021997A2 (en) 1995-01-14 1996-01-12 3d-projection
PCT/SE1996/000018 WO1996021992A2 (en) 1995-01-14 1996-01-12 Method for increased colour reproduction

Family Applications After (4)

Application Number Title Priority Date Filing Date
PCT/SE1996/000015 WO1996021995A2 (en) 1995-01-14 1996-01-12 Projection arrangement
PCT/SE1996/000019 WO1996021883A2 (en) 1995-01-14 1996-01-12 Projection screen
PCT/SE1996/000017 WO1996021997A2 (en) 1995-01-14 1996-01-12 3d-projection
PCT/SE1996/000018 WO1996021992A2 (en) 1995-01-14 1996-01-12 Method for increased colour reproduction

Country Status (1)

Country Link
WO (5) WO1996021996A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4455771B2 (en) * 1999-04-12 2010-04-21 ドイッチェ テレコム アーゲー Method and apparatus for reducing speckle formation on a projection screen
DE19924519A1 (en) 1999-04-12 2000-10-19 Deutsche Telekom Ag Method and device for reducing the formation of speckles on a projection screen
JP2001339742A (en) * 2000-03-21 2001-12-07 Olympus Optical Co Ltd Three dimensional image projection apparatus and its correction amount calculator
TW528920B (en) 2001-12-13 2003-04-21 Sony Corp Screen, the manufacturing method for the same, and image display system
JP4111011B2 (en) 2002-03-14 2008-07-02 ソニー株式会社 Projection screen
US7597447B2 (en) 2004-07-14 2009-10-06 Honeywell International Inc. Color correcting contrast enhancement of displays
DE102007011561B4 (en) * 2007-03-02 2016-03-17 Seereal Technologies S.A. Device for correcting the wavelength dependence in diffraction-based optical systems
DE102007011560A1 (en) * 2007-03-02 2008-09-04 Seereal Technologies S.A. Device for minimizing the bending dispersion in light modulators comprises a refractive optical element assigned to a light modulator
CN108227353B (en) * 2016-12-14 2020-12-22 中强光电股份有限公司 Light source module and projection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574269A1 (en) * 1992-06-12 1993-12-15 SHARP Corporation Projecting type color image display device
EP0605232A1 (en) * 1992-12-28 1994-07-06 Sony Corporation Image projecting apparatus

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214638A1 (en) * 1971-03-29 1972-10-12 Hubbard N Projection screen
JPS52130325A (en) * 1976-04-23 1977-11-01 Schudel Conrad Movie screen
DE3214021A1 (en) * 1982-04-16 1983-10-20 Bruker Analytische Meßtechnik GmbH, 7512 Rheinstetten Device for generating and representing three-dimensional images
EP0107091B1 (en) * 1982-09-29 1990-03-14 Honeywell Inc. Stereo television system
US5272473A (en) * 1989-02-27 1993-12-21 Texas Instruments Incorporated Reduced-speckle display system
CN1017192B (en) * 1989-03-23 1992-06-24 清华大学 Dispersed laser speckle contact screen and optical system for its manufacture
DE69117092T2 (en) * 1990-04-26 1996-10-02 Bayer Ag RGB color database and method for its generation
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
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
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
SE9300958L (en) * 1993-03-23 1994-09-24 Nova Onab Optica Ab Offset projector
EP0626783B1 (en) * 1993-05-28 1998-10-28 Eastman Kodak Company Method and apparatus for determining a gamut boundary and a gamut descriptor
US5534950A (en) * 1993-10-04 1996-07-09 Laser Power Corporation High resolution image projection system and method employing lasers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0574269A1 (en) * 1992-06-12 1993-12-15 SHARP Corporation Projecting type color image display device
EP0605232A1 (en) * 1992-12-28 1994-07-06 Sony Corporation Image projecting apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 18, No. 306, P-1752, 10 June 1994; & JP,A,06 067 168, (MATSUSHITA ELECTRIC IND CO LTD), 11 March 1994. *
PATENT ABSTRACTS OF JAPAN, Vol. 8, No. 23, P-251, 31 January 1984; & JP,A,58 179 817, (SUWA SEIKOSHA K.K.), 21 October 1983. *

Also Published As

Publication number Publication date
WO1996021883A2 (en) 1996-07-18
WO1996021997A2 (en) 1996-07-18
WO1996021992A3 (en) 1996-09-19
WO1996021996A2 (en) 1996-07-18
WO1996021883A3 (en) 1996-09-12
WO1996021995A3 (en) 1996-09-19
WO1996021995A2 (en) 1996-07-18
WO1996021997A3 (en) 1996-09-12
WO1996021992A2 (en) 1996-07-18

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