FR2690534B1 - - Google Patents

Info

Publication number
FR2690534B1
FR2690534B1 FR9205055A FR9205055A FR2690534B1 FR 2690534 B1 FR2690534 B1 FR 2690534B1 FR 9205055 A FR9205055 A FR 9205055A FR 9205055 A FR9205055 A FR 9205055A FR 2690534 B1 FR2690534 B1 FR 2690534B1
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
FR9205055A
Other languages
French (fr)
Other versions
FR2690534A1 (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 FR9205055A priority Critical patent/FR2690534A1/fr
Publication of FR2690534A1 publication Critical patent/FR2690534A1/fr
Application granted granted Critical
Publication of FR2690534B1 publication Critical patent/FR2690534B1/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
    • G02B27/01—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
    • 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
    • G02B27/30—Collimators
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
FR9205055A 1992-04-24 1992-04-24 Dispositif de collimation de faible encombrement, en particulier pour visuel de casque. Granted FR2690534A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9205055A FR2690534A1 (fr) 1992-04-24 1992-04-24 Dispositif de collimation de faible encombrement, en particulier pour visuel de casque.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9205055A FR2690534A1 (fr) 1992-04-24 1992-04-24 Dispositif de collimation de faible encombrement, en particulier pour visuel de casque.

Publications (2)

Publication Number Publication Date
FR2690534A1 FR2690534A1 (fr) 1993-10-29
FR2690534B1 true FR2690534B1 (enrdf_load_stackoverflow) 1997-02-21

Family

ID=9429217

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9205055A Granted FR2690534A1 (fr) 1992-04-24 1992-04-24 Dispositif de collimation de faible encombrement, en particulier pour visuel de casque.

Country Status (1)

Country Link
FR (1) FR2690534A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5903396A (en) 1997-10-17 1999-05-11 I/O Display Systems, Llc Intensified visual display

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7352994A (en) * 1994-02-07 1995-08-21 Richard Dennis Rallison Intensified visual display
EP0710865A1 (en) * 1994-10-31 1996-05-08 Kaiser Electro-Optics, Inc. Optical collimating device
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
JP3757420B2 (ja) * 1996-03-11 2006-03-22 セイコーエプソン株式会社 頭部装着型表示装置
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
FR2780519B1 (fr) * 1998-06-26 2001-11-30 Thomson Csf Dispositif de collimation a coefficient de transmission ameliore
KR20010089170A (ko) * 1999-06-22 2001-09-29 요트.게.아. 롤페즈 헤드-장착 디스플레이
JP3918487B2 (ja) * 2001-07-26 2007-05-23 セイコーエプソン株式会社 立体表示装置及び投射型立体表示装置
US11579425B1 (en) 2019-08-05 2023-02-14 Meta Platforms Technologies, Llc Narrow-band peripheral see-through pancake lens assembly and display device with same
US11586024B1 (en) 2019-08-05 2023-02-21 Meta Platforms Technologies, Llc Peripheral see-through pancake lens assembly and display device with same
US11592608B2 (en) 2019-09-10 2023-02-28 Meta Platforms Technologies, Llc Switchable polarization retarder array for active zonal illumination of display
US11391948B2 (en) 2019-09-10 2022-07-19 Facebook Technologies, Llc Display illumination using a grating
US11726336B2 (en) 2019-09-10 2023-08-15 Meta Platforms Technologies, Llc Active zonal display illumination using a chopped lightguide
US10989928B2 (en) 2019-09-17 2021-04-27 Facebook Technologies, Llc Thin see-through pancake lens assembly and display device including the same
US11360308B2 (en) 2020-01-22 2022-06-14 Facebook Technologies, Llc Optical assembly with holographic optics for folded optical path

Family Cites Families (2)

* 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
US4859031A (en) * 1987-08-03 1989-08-22 Kaiser Electronics Optical collimating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5903396A (en) 1997-10-17 1999-05-11 I/O Display Systems, Llc Intensified visual display

Also Published As

Publication number Publication date
FR2690534A1 (fr) 1993-10-29

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Legal Events

Date Code Title Description
ST Notification of lapse