FR2366958A1 - Vehicle rear view mirror - has liq. crystal film between mirror and outer glass to make mirror opaque eliminating glare from following headlights - Google Patents
Vehicle rear view mirror - has liq. crystal film between mirror and outer glass to make mirror opaque eliminating glare from following headlightsInfo
- Publication number
- FR2366958A1 FR2366958A1 FR7630207A FR7630207A FR2366958A1 FR 2366958 A1 FR2366958 A1 FR 2366958A1 FR 7630207 A FR7630207 A FR 7630207A FR 7630207 A FR7630207 A FR 7630207A FR 2366958 A1 FR2366958 A1 FR 2366958A1
- Authority
- FR
- France
- Prior art keywords
- mirror
- opaque
- glass
- rear view
- crystal film
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
- B60R1/083—Anti-glare mirrors, e.g. "day-night" mirrors
- B60R1/088—Anti-glare mirrors, e.g. "day-night" mirrors using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The vehicle rear view mirror includes a system for rendering the glass opaque. This is done by placing between the reflecting glass and a transparent outside glass a thin film of liquid crystals. Under the influence of a suitable electrical voltage and frequency the liquid crystal film becomes opaque. The control is very suitable for a rear mirror fitted a long way from the driver and outside a vehicle. The electrical control can be automatic, and initiated by a photo electric cell which measures the light intensity reaching the glass or generally existing outside the vehicle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7630207A FR2366958A1 (en) | 1976-10-08 | 1976-10-08 | Vehicle rear view mirror - has liq. crystal film between mirror and outer glass to make mirror opaque eliminating glare from following headlights |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7630207A FR2366958A1 (en) | 1976-10-08 | 1976-10-08 | Vehicle rear view mirror - has liq. crystal film between mirror and outer glass to make mirror opaque eliminating glare from following headlights |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2366958A1 true FR2366958A1 (en) | 1978-05-05 |
Family
ID=9178497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7630207A Withdrawn FR2366958A1 (en) | 1976-10-08 | 1976-10-08 | Vehicle rear view mirror - has liq. crystal film between mirror and outer glass to make mirror opaque eliminating glare from following headlights |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2366958A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2513198A1 (en) * | 1981-09-21 | 1983-03-25 | Herrmann Henri | Anti-dazzle rear view mirror - has liquid crystal material with variable transparency controlling intensity of reflected light using photodetector |
FR2530039A1 (en) * | 1982-07-06 | 1984-01-13 | Cuvelier Antoine | Safety (protective) glasses having automatically adjustable transmission using liquid crystals |
EP0201938A2 (en) * | 1985-05-17 | 1986-11-20 | C-D Marketing, Ltd. | Liquid crystal controlled mirror systems |
AU679470B2 (en) * | 1993-02-23 | 1997-07-03 | Research Frontiers Incorporated | Rear-view assembly for a vehicle and an adaptor therefor |
WO1997034780A2 (en) * | 1996-03-19 | 1997-09-25 | Donnelly Mirrors Limited | Electro-optic rearview mirror system |
US5764402A (en) * | 1994-04-29 | 1998-06-09 | Glaverbel | Optical cell control system |
US6340849B1 (en) | 1996-07-11 | 2002-01-22 | Donnelly Corporation | Memory mirror system for vehicles |
US6340850B2 (en) | 1996-07-11 | 2002-01-22 | Donnelly Corporation | Vehicle mirror digital network and dynamically interactive mirror system |
-
1976
- 1976-10-08 FR FR7630207A patent/FR2366958A1/en not_active Withdrawn
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2513198A1 (en) * | 1981-09-21 | 1983-03-25 | Herrmann Henri | Anti-dazzle rear view mirror - has liquid crystal material with variable transparency controlling intensity of reflected light using photodetector |
FR2530039A1 (en) * | 1982-07-06 | 1984-01-13 | Cuvelier Antoine | Safety (protective) glasses having automatically adjustable transmission using liquid crystals |
EP0201938A2 (en) * | 1985-05-17 | 1986-11-20 | C-D Marketing, Ltd. | Liquid crystal controlled mirror systems |
EP0201938A3 (en) * | 1985-05-17 | 1988-08-03 | C-D Marketing, Ltd. | Liquid crystal controlled mirror systems |
AU679470B2 (en) * | 1993-02-23 | 1997-07-03 | Research Frontiers Incorporated | Rear-view assembly for a vehicle and an adaptor therefor |
AT408871B (en) * | 1993-02-25 | 2002-03-25 | Research Frontiers Inc | REAR-VIEW MIRROR ARRANGEMENT FOR A VEHICLE AND AN ADAPTER THEREFOR |
US5691849A (en) * | 1993-02-25 | 1997-11-25 | Glaverbel | Rear-view assembly for a vehicle and an adaptor therefor |
US5764402A (en) * | 1994-04-29 | 1998-06-09 | Glaverbel | Optical cell control system |
WO1997034780A3 (en) * | 1996-03-19 | 1999-02-11 | Electro-optic rearview mirror system | |
US6299316B1 (en) | 1996-03-19 | 2001-10-09 | Donnelly Mirrors Limited | Electro-optic rearview mirror system |
WO1997034780A2 (en) * | 1996-03-19 | 1997-09-25 | Donnelly Mirrors Limited | Electro-optic rearview mirror system |
US6447124B1 (en) | 1996-03-19 | 2002-09-10 | Donnelly Mirrors Limited | Electro-optic rearview mirror system |
US6340849B1 (en) | 1996-07-11 | 2002-01-22 | Donnelly Corporation | Memory mirror system for vehicles |
US6340850B2 (en) | 1996-07-11 | 2002-01-22 | Donnelly Corporation | Vehicle mirror digital network and dynamically interactive mirror system |
US6465904B2 (en) | 1996-07-11 | 2002-10-15 | Donnelly Corporation | Vehicle mirror digital network and dynamically interactive mirror system |
US6472773B2 (en) | 1996-07-11 | 2002-10-29 | Donnelly Corporation | Memory mirror system for vehicles |
US6867510B2 (en) | 1996-07-11 | 2005-03-15 | Donnelly Corporation | Memory mirror system for vehicles |
US6956302B2 (en) | 1996-07-11 | 2005-10-18 | Donnelly Corporation | Rear vision system for a vehicle equipped with a vehicle communication network |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |