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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9205055A FR2690534A1 (en) | 1992-04-24 | 1992-04-24 | Optical collimator, especially for helmet with visor - incorporates circular polarisation selector followed by semi-reflective spherical mirror and linear reflective polariser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9205055A FR2690534A1 (en) | 1992-04-24 | 1992-04-24 | Optical collimator, especially for helmet with visor - incorporates circular polarisation selector followed by semi-reflective spherical mirror and linear reflective polariser |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2690534A1 FR2690534A1 (en) | 1993-10-29 |
FR2690534B1 true FR2690534B1 (en) | 1997-02-21 |
Family
ID=9429217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9205055A Granted FR2690534A1 (en) | 1992-04-24 | 1992-04-24 | Optical collimator, especially for helmet with visor - incorporates circular polarisation selector followed by semi-reflective spherical mirror and linear reflective polariser |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2690534A1 (en) |
Cited By (1)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09508477A (en) * | 1994-02-07 | 1997-08-26 | バーチュアル・アイ/オゥ・インコーポレイテッド | Multiplication visual display |
EP0710865A1 (en) * | 1994-10-31 | 1996-05-08 | Kaiser Electro-Optics, Inc. | Optical collimating device |
JP3295583B2 (en) * | 1994-12-19 | 2002-06-24 | シャープ株式会社 | Optical device and head-mounted display using the optical device |
WO1997034182A1 (en) * | 1996-03-11 | 1997-09-18 | Seiko Epson Corporation | Head-mounted display |
FR2776882B1 (en) * | 1998-03-24 | 2001-11-16 | Thomson Csf | STEREOSCOPIC DISPLAY DEVICE |
FR2776881B1 (en) * | 1998-03-24 | 2001-11-16 | Thomson Csf | THREE-DIMENSIONAL VIEWING DEVICE |
FR2780519B1 (en) * | 1998-06-26 | 2001-11-30 | Thomson Csf | COLLIMATION DEVICE WITH IMPROVED TRANSMISSION COEFFICIENT |
KR20010089170A (en) * | 1999-06-22 | 2001-09-29 | 요트.게.아. 롤페즈 | Head-mounted display |
JP3918487B2 (en) * | 2001-07-26 | 2007-05-23 | セイコーエプソン株式会社 | Stereoscopic display device and projection-type stereoscopic display device |
US11586024B1 (en) | 2019-08-05 | 2023-02-21 | Meta Platforms Technologies, Llc | Peripheral see-through pancake lens assembly and display device with same |
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 |
US11726336B2 (en) | 2019-09-10 | 2023-08-15 | Meta Platforms Technologies, Llc | Active zonal display illumination using a chopped lightguide |
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 |
US11835722B2 (en) * | 2019-09-17 | 2023-12-05 | Meta Platforms Technologies, Llc | Display device with transparent emissive display and see-through lens assembly |
US11360308B2 (en) * | 2020-01-22 | 2022-06-14 | Facebook Technologies, Llc | Optical assembly with holographic optics for folded optical path |
Family Cites Families (2)
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 |
-
1992
- 1992-04-24 FR FR9205055A patent/FR2690534A1/en active Granted
Cited By (1)
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 (en) | 1993-10-29 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |