FR2693004B1 - - Google Patents

Info

Publication number
FR2693004B1
FR2693004B1 FR9204085A FR9204085A FR2693004B1 FR 2693004 B1 FR2693004 B1 FR 2693004B1 FR 9204085 A FR9204085 A FR 9204085A FR 9204085 A FR9204085 A FR 9204085A FR 2693004 B1 FR2693004 B1 FR 2693004B1
Authority
FR
France
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
FR9204085A
Other languages
French (fr)
Other versions
FR2693004A1 (fr
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 filed Critical
Priority to FR9204085A priority Critical patent/FR2693004A1/fr
Publication of FR2693004A1 publication Critical patent/FR2693004A1/fr
Application granted granted Critical
Publication of FR2693004B1 publication Critical patent/FR2693004B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G02B27/30—Collimators
    • 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
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • 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
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
    • 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
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
    • 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
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/10—Mirrors with curved faces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
FR9204085A 1992-04-03 1992-04-03 Dispositif de collimation de faible encombrement, en particulier pour visuel de casque. Granted FR2693004A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9204085A FR2693004A1 (fr) 1992-04-03 1992-04-03 Dispositif de collimation de faible encombrement, en particulier pour visuel de casque.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9204085A FR2693004A1 (fr) 1992-04-03 1992-04-03 Dispositif de collimation de faible encombrement, en particulier pour visuel de casque.

Publications (2)

Publication Number Publication Date
FR2693004A1 FR2693004A1 (fr) 1993-12-31
FR2693004B1 true FR2693004B1 (enrdf_load_stackoverflow) 1997-02-21

Family

ID=9428450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9204085A Granted FR2693004A1 (fr) 1992-04-03 1992-04-03 Dispositif de collimation de faible encombrement, en particulier pour visuel de casque.

Country Status (1)

Country Link
FR (1) FR2693004A1 (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3295583B2 (ja) * 1994-12-19 2002-06-24 シャープ株式会社 光学装置および該光学装置を用いた頭部搭載型ディスプレイ
US6433935B2 (en) 1996-07-02 2002-08-13 Three-Five Systems, Inc. Display illumination system
FR2759788B1 (fr) * 1997-02-14 1999-05-07 Sextant Avionique Reduction d'images parasites dans un viseur tete haute
FR2776882B1 (fr) * 1998-03-24 2001-11-16 Thomson Csf Dispositif de visualisation stereoscopique
FR2776881B1 (fr) * 1998-03-24 2001-11-16 Thomson Csf Dispositif de visualisation en trois dimensions
WO2001002893A1 (en) * 1999-07-02 2001-01-11 Koninklijke Philips Electronics N.V. Head-mounted display
WO2001075508A1 (en) * 2000-03-31 2001-10-11 Koninklijke Philips Electronics N.V. Head-mounted display
US6563638B2 (en) * 2001-04-26 2003-05-13 Raytheon Company Wide-angle collimating optical device
US11662581B2 (en) 2019-11-13 2023-05-30 Google Llc Head mounted display with lightguide and holographic element

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443858A (en) * 1966-02-23 1969-05-13 Farrand Optical Co Inc Infinite optical image-forming apparatus
US4093347A (en) * 1976-05-10 1978-06-06 Farrand Optical Co., Inc. Optical simulation apparatus using controllable real-life element
EP0296710B1 (en) * 1987-06-23 1994-02-23 Kaiser Aerospace And Electronics Corporation Head-up display combiner utilizing a cholesteric liquid crystal element
US4859031A (en) * 1987-08-03 1989-08-22 Kaiser Electronics Optical collimating apparatus
US5050966A (en) * 1988-07-06 1991-09-24 Kaiser Aerospace & Electronics Corporation Optical combiner collimating apparatus

Also Published As

Publication number Publication date
FR2693004A1 (fr) 1993-12-31

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Legal Events

Date Code Title Description
ST Notification of lapse