FR2670024B1 - Dispositif de production de lumiere polarisee. - Google Patents

Dispositif de production de lumiere polarisee.

Info

Publication number
FR2670024B1
FR2670024B1 FR9015447A FR9015447A FR2670024B1 FR 2670024 B1 FR2670024 B1 FR 2670024B1 FR 9015447 A FR9015447 A FR 9015447A FR 9015447 A FR9015447 A FR 9015447A FR 2670024 B1 FR2670024 B1 FR 2670024B1
Authority
FR
France
Prior art keywords
polarized light
production device
light production
polarized
production
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
FR9015447A
Other languages
English (en)
Other versions
FR2670024A1 (fr
Inventor
Georges Cornuejols
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.)
Scanera SC
Original Assignee
Scanera SC
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 Scanera SC filed Critical Scanera SC
Priority to FR9015447A priority Critical patent/FR2670024B1/fr
Publication of FR2670024A1 publication Critical patent/FR2670024A1/fr
Application granted granted Critical
Publication of FR2670024B1 publication Critical patent/FR2670024B1/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
    • 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
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3066—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state involving the reflection of light at a particular angle of incidence, e.g. Brewster's angle
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133536—Reflective polarizers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Projection Apparatus (AREA)
FR9015447A 1990-11-30 1990-11-30 Dispositif de production de lumiere polarisee. Expired - Fee Related FR2670024B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9015447A FR2670024B1 (fr) 1990-11-30 1990-11-30 Dispositif de production de lumiere polarisee.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9015447A FR2670024B1 (fr) 1990-11-30 1990-11-30 Dispositif de production de lumiere polarisee.

Publications (2)

Publication Number Publication Date
FR2670024A1 FR2670024A1 (fr) 1992-06-05
FR2670024B1 true FR2670024B1 (fr) 1994-03-18

Family

ID=9403078

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9015447A Expired - Fee Related FR2670024B1 (fr) 1990-11-30 1990-11-30 Dispositif de production de lumiere polarisee.

Country Status (1)

Country Link
FR (1) FR2670024B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693561B1 (fr) * 1992-07-10 1994-09-30 Alphaprime Source de lumière polarisée et rétroprojecteur utilisant cette source.
CN103048863B (zh) * 2011-10-11 2015-05-27 台达电子工业股份有限公司 光源系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512868A (en) * 1967-12-29 1970-05-19 Rca Corp Apparatus for forming a beam of light
US3743380A (en) * 1972-01-31 1973-07-03 Us Navy Polarized light source for underwater use
US3912369A (en) * 1974-07-02 1975-10-14 Gen Electric Single polarizer reflective liquid crystal display
GB8600022D0 (en) * 1986-01-02 1986-02-12 Rca Corp Arrangement to minimize reflected ambient light
US4798448A (en) * 1988-02-16 1989-01-17 General Electric Company High efficiency illumination system for display devices

Also Published As

Publication number Publication date
FR2670024A1 (fr) 1992-06-05

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Legal Events

Date Code Title Description
ST Notification of lapse