JPS55149902A - Electronically controlled rear-vision mirror - Google Patents
Electronically controlled rear-vision mirrorInfo
- Publication number
- JPS55149902A JPS55149902A JP5762879A JP5762879A JPS55149902A JP S55149902 A JPS55149902 A JP S55149902A JP 5762879 A JP5762879 A JP 5762879A JP 5762879 A JP5762879 A JP 5762879A JP S55149902 A JPS55149902 A JP S55149902A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- liquid crystal
- vision mirror
- frame body
- light
- 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.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
PURPOSE: To obtain a rear-vision mirror of which reflecting function automatically decreases when an intensive light from headlight of a succeeding car enters when running at night, by controlling the liquid crystal display placed before the mirror with a light detection signal by a photo sensor placed by the side.
CONSTITUTION: A mirror body 10, a liquid crystal plate 9 and a polarizing plate 8 are successively laminated, and are supported on a frame body 2 through a packing 13, and a photo sensor 4 is placed in the hole 3 in the front face of the frame body 2 to form a rear-vision mirror (in which 7 is a fitting having a fixing part 7a at one end affixed to the frame body 2). When an intensive light enters the front face of this rear-vision mirror, it is detected by the sensor 4, of which signal is applied to operate the liquid crystal plate 9 being driven by alternating currents from an oscillator, through a DC amplifier 15, a delaying circuit 16, a detecting circuit 17, a driver 19, etc., to lower the transmittance of the light, so that the reflection by the mirror body 10 may be attenuated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5762879A JPS55149902A (en) | 1979-05-12 | 1979-05-12 | Electronically controlled rear-vision mirror |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5762879A JPS55149902A (en) | 1979-05-12 | 1979-05-12 | Electronically controlled rear-vision mirror |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55149902A true JPS55149902A (en) | 1980-11-21 |
Family
ID=13061142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5762879A Pending JPS55149902A (en) | 1979-05-12 | 1979-05-12 | Electronically controlled rear-vision mirror |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55149902A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57172401U (en) * | 1981-04-24 | 1982-10-30 | ||
JPS5971030A (en) * | 1982-10-18 | 1984-04-21 | Toyota Motor Corp | Anti-dazzling liquid crystal mirror |
JPS59181402U (en) * | 1983-05-18 | 1984-12-04 | 株式会社東海理化電機製作所 | Anti-glare mirror control circuit |
JPS6068517U (en) * | 1983-10-17 | 1985-05-15 | 株式会社村上開明堂 | LCD anti-glare mirror switch |
US4669825A (en) * | 1983-12-27 | 1987-06-02 | Nippondenso Co., Ltd. | Control apparatus with delay circuit for antiglare mirror |
US4669827A (en) * | 1984-02-13 | 1987-06-02 | Nippondenso Co., Ltd. | Detection of manipulation of position apparatus for dazzle-free mirror |
JPS63179330A (en) * | 1986-12-31 | 1988-07-23 | サムサン エレクトロニクス シーオー.,エルティーディー. | Liquid crystal rear view mirror driving circuit |
FR2702719A1 (en) * | 1993-03-19 | 1994-09-23 | Dynaprog Sarl | Anti-dazzle rear-view mirror with electrooptical filter |
-
1979
- 1979-05-12 JP JP5762879A patent/JPS55149902A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57172401U (en) * | 1981-04-24 | 1982-10-30 | ||
JPS5971030A (en) * | 1982-10-18 | 1984-04-21 | Toyota Motor Corp | Anti-dazzling liquid crystal mirror |
JPS59181402U (en) * | 1983-05-18 | 1984-12-04 | 株式会社東海理化電機製作所 | Anti-glare mirror control circuit |
JPS6068517U (en) * | 1983-10-17 | 1985-05-15 | 株式会社村上開明堂 | LCD anti-glare mirror switch |
JPH0419526Y2 (en) * | 1983-10-17 | 1992-05-01 | ||
US4669825A (en) * | 1983-12-27 | 1987-06-02 | Nippondenso Co., Ltd. | Control apparatus with delay circuit for antiglare mirror |
US4669827A (en) * | 1984-02-13 | 1987-06-02 | Nippondenso Co., Ltd. | Detection of manipulation of position apparatus for dazzle-free mirror |
JPS63179330A (en) * | 1986-12-31 | 1988-07-23 | サムサン エレクトロニクス シーオー.,エルティーディー. | Liquid crystal rear view mirror driving circuit |
FR2702719A1 (en) * | 1993-03-19 | 1994-09-23 | Dynaprog Sarl | Anti-dazzle rear-view mirror with electrooptical filter |
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