FR2673006B1 - Systeme de projection a reflexion a valve de lumiere a cristal liquide. - Google Patents

Systeme de projection a reflexion a valve de lumiere a cristal liquide.

Info

Publication number
FR2673006B1
FR2673006B1 FR9201761A FR9201761A FR2673006B1 FR 2673006 B1 FR2673006 B1 FR 2673006B1 FR 9201761 A FR9201761 A FR 9201761A FR 9201761 A FR9201761 A FR 9201761A FR 2673006 B1 FR2673006 B1 FR 2673006B1
Authority
FR
France
Prior art keywords
liquid crystal
projection system
light valve
crystal light
reflective projection
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
FR9201761A
Other languages
English (en)
Other versions
FR2673006A1 (fr
Inventor
Peter A. Zeidler
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of FR2673006A1 publication Critical patent/FR2673006A1/fr
Application granted granted Critical
Publication of FR2673006B1 publication Critical patent/FR2673006B1/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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3167—Modulator illumination systems for polarizing the light beam

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
FR9201761A 1991-02-19 1992-02-17 Systeme de projection a reflexion a valve de lumiere a cristal liquide. Expired - Fee Related FR2673006B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65689691A 1991-02-19 1991-02-19

Publications (2)

Publication Number Publication Date
FR2673006A1 FR2673006A1 (fr) 1992-08-21
FR2673006B1 true FR2673006B1 (fr) 1993-10-22

Family

ID=24635021

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9201761A Expired - Fee Related FR2673006B1 (fr) 1991-02-19 1992-02-17 Systeme de projection a reflexion a valve de lumiere a cristal liquide.

Country Status (3)

Country Link
JP (1) JP2703446B2 (fr)
FR (1) FR2673006B1 (fr)
NL (1) NL9200303A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5576854A (en) * 1993-11-12 1996-11-19 Hughes-Jvc Technology Corporation Liquid crystal light valve projector with improved contrast ratio and with 0.27 wavelength compensation for birefringence in the liquid crystal light valve
US6390626B2 (en) * 1996-10-17 2002-05-21 Duke University Image projection system engine assembly
US6204901B1 (en) 1997-07-31 2001-03-20 Duke University Liquid crystal color shutters that include reflective polarizers that pass color components of light of a first polarization and that reflect a majority of color components of light of a second polarization
US6185041B1 (en) 1998-10-23 2001-02-06 Duke University Projection lens and system
GB0030861D0 (en) * 2000-12-18 2001-01-31 Seos Displays Ltd Display apparatus for displaying an image by pack projection
JP2006047947A (ja) * 2004-06-21 2006-02-16 Victor Co Of Japan Ltd 投射表示装置
JP4913996B2 (ja) 2004-09-16 2012-04-11 キヤノン株式会社 投射型画像表示装置
JP6296950B2 (ja) * 2014-09-22 2018-03-20 シチズンファインデバイス株式会社 電子ビューファインダ装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2212559B1 (fr) * 1972-12-29 1977-08-05 Thomson Csf
JPS63123018A (ja) * 1986-11-12 1988-05-26 Hitachi Ltd 投射型液晶表示装置
JPH01207716A (ja) * 1988-02-16 1989-08-21 Seiko Instr & Electron Ltd 偏光像投影装置
JP2782520B2 (ja) * 1988-12-14 1998-08-06 旭光学工業株式会社 液晶投影表示装置
JPH0283524U (fr) * 1988-12-19 1990-06-28
US4995718A (en) * 1989-11-15 1991-02-26 Honeywell Inc. Full color three-dimensional projection display

Also Published As

Publication number Publication date
NL9200303A (nl) 1992-09-16
JP2703446B2 (ja) 1998-01-26
JPH0593887A (ja) 1993-04-16
FR2673006A1 (fr) 1992-08-21

Similar Documents

Publication Publication Date Title
DE3873478D1 (de) Optisches system fuer vollfarbige fluessigkristallichtventilbildprojektion.
NO171040C (no) Forbedret optisk system for trefarget flytende-krystall lysventil bildeprojeksjonssystem
DE69430997D1 (de) Anzeige mit reflektivem polarisator
FR2658618B1 (fr) Reflecteur multicouche pour dispositif optique.
DE3876027T2 (de) Farbsequentielles beleuchtungssystem fuer ein fluessigkristall-lichtventil.
DE69622504D1 (de) Flüssigkristallprojektor
DE69611561D1 (de) Wirksames optisches System für eine hochauflösende Projektionsanzeige mit Reflexionslichtventilen
DE69625202D1 (de) Flüssigkristallprojektionsanzeigevorrichtung mit mehrschichtigen polarisatoren
DE69316673T2 (de) Zweiweg-Flüssigkristall-Lichtventil Farbanzeige
DE68915358D1 (de) Transmissive Flüssigkristall-Anzeigevorrichtung.
DE69513801T2 (de) Farb-projektions-anzeigesystem mit flüssigkristallen
DE69231810T2 (de) Beleuchtungssystem mit flüssigkristall-lichtregelplatte
DE69611563D1 (de) Wirksames optisches System für eine hochauflösende Projektionsanzeige mit Reflexionslichtventilen
DE69611560D1 (de) Wirksames optisches System für eine hochauflösende Projektionsanzeige mit Reflexionslichtventilen
DE68917951T2 (de) Flüssigkristall-Bildprojektionssystem.
DE69708803T2 (de) Auflichtprojektor mit Flüssigkristallanzeigevorrichtung
FR2673006B1 (fr) Systeme de projection a reflexion a valve de lumiere a cristal liquide.
DE69227221D1 (de) Räumlicher Lichtmodulator mit Flüssigkristall
FR2733619B1 (fr) Systeme d'eclairement d'un ecran a cristal liquide
GB9424428D0 (en) Projection optical system for a liquid crystal projector
DE68916809D1 (de) Transmissive flüssigkristallanzeige-vorrichtung.
DE69315608T2 (de) Photoleitergekoppeltes Flüssigkeitskristall-Lichtventil
FR2699688B1 (fr) Dispositif de filtrage optique et application à un projecteur à cristal liquide.
FR2658351B1 (fr) Systeme de structures a tendeurs incorpores pour enseignes lumineuse.
KR940018531U (ko) 액정프로젝터의 광학계

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse