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 headlights

Info

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Withdrawn
Application number
FR7630207A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7630207A priority Critical patent/FR2366958A1/en
Publication of FR2366958A1 publication Critical patent/FR2366958A1/en
Withdrawn legal-status Critical Current

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.
FR7630207A 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 Withdrawn FR2366958A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (18)

* Cited by examiner, † Cited by third party
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