FR2699688B1 - Dispositif de filtrage optique et application à un projecteur à cristal liquide. - Google Patents

Dispositif de filtrage optique et application à un projecteur à cristal liquide.

Info

Publication number
FR2699688B1
FR2699688B1 FR9215382A FR9215382A FR2699688B1 FR 2699688 B1 FR2699688 B1 FR 2699688B1 FR 9215382 A FR9215382 A FR 9215382A FR 9215382 A FR9215382 A FR 9215382A FR 2699688 B1 FR2699688 B1 FR 2699688B1
Authority
FR
France
Prior art keywords
application
liquid crystal
filtering device
crystal projector
optical filtering
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
FR9215382A
Other languages
English (en)
Other versions
FR2699688A1 (fr
Inventor
Brigitte Loiseaux
Cecile Joubert
Jean-Pierre Huignard
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR9215382A priority Critical patent/FR2699688B1/fr
Priority to PCT/FR1994/000733 priority patent/WO1995035486A1/fr
Priority claimed from PCT/FR1994/000733 external-priority patent/WO1995035486A1/fr
Publication of FR2699688A1 publication Critical patent/FR2699688A1/fr
Application granted granted Critical
Publication of FR2699688B1 publication Critical patent/FR2699688B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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]
    • H04N9/3102—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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
    • G02B27/1046—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with transmissive spatial light modulators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Projection Apparatus (AREA)
FR9215382A 1992-12-21 1992-12-21 Dispositif de filtrage optique et application à un projecteur à cristal liquide. Expired - Fee Related FR2699688B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9215382A FR2699688B1 (fr) 1992-12-21 1992-12-21 Dispositif de filtrage optique et application à un projecteur à cristal liquide.
PCT/FR1994/000733 WO1995035486A1 (fr) 1992-12-21 1994-06-17 Dispositif de filtrage optique et application a un projecteur a cristal liquide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9215382A FR2699688B1 (fr) 1992-12-21 1992-12-21 Dispositif de filtrage optique et application à un projecteur à cristal liquide.
PCT/FR1994/000733 WO1995035486A1 (fr) 1992-12-21 1994-06-17 Dispositif de filtrage optique et application a un projecteur a cristal liquide

Publications (2)

Publication Number Publication Date
FR2699688A1 FR2699688A1 (fr) 1994-06-24
FR2699688B1 true FR2699688B1 (fr) 1995-01-20

Family

ID=9436841

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9215382A Expired - Fee Related FR2699688B1 (fr) 1992-12-21 1992-12-21 Dispositif de filtrage optique et application à un projecteur à cristal liquide.

Country Status (1)

Country Link
FR (1) FR2699688B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2951858B2 (ja) * 1994-10-17 1999-09-20 シャープ株式会社 投影型カラー液晶表示装置
FR2738645B1 (fr) * 1995-09-12 1997-10-03 Thomson Csf Systeme d'illumination d'un ecran de visualisation couleurs electrooptique
JP3690006B2 (ja) * 1996-10-31 2005-08-31 ソニー株式会社 映像投射装置
US6698894B2 (en) 2001-12-19 2004-03-02 Koninklijke Philips Electronics N.V. Scrolling color light engine with improved color uniformity of the illumination field and single panel projection display system incorporating same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752130A (en) * 1986-10-24 1988-06-21 The University Of Rochester Optical systems utilizing a volume transmission diffraction element to provide wavelength tuning
JPS63147135A (ja) * 1986-12-10 1988-06-20 Konica Corp レ−ザ−光量安定化装置
FR2642927B1 (fr) * 1989-02-07 1993-12-24 Thomson Csf Dispositif de visualisation a haute definition, couleur

Also Published As

Publication number Publication date
FR2699688A1 (fr) 1994-06-24

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse

Effective date: 20070831