JPS59181402U - Anti-glare mirror control circuit - Google Patents

Anti-glare mirror control circuit

Info

Publication number
JPS59181402U
JPS59181402U JP7496083U JP7496083U JPS59181402U JP S59181402 U JPS59181402 U JP S59181402U JP 7496083 U JP7496083 U JP 7496083U JP 7496083 U JP7496083 U JP 7496083U JP S59181402 U JPS59181402 U JP S59181402U
Authority
JP
Japan
Prior art keywords
differential amplifier
circuit
output signal
glare mirror
electro
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.)
Granted
Application number
JP7496083U
Other languages
Japanese (ja)
Other versions
JPH0614161Y2 (en
Inventor
茂 加藤
純一 仲保
芝原　誠
Original Assignee
株式会社東海理化電機製作所
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 株式会社東海理化電機製作所 filed Critical 株式会社東海理化電機製作所
Priority to JP1983074960U priority Critical patent/JPH0614161Y2/en
Priority to US06/534,604 priority patent/US4603946A/en
Publication of JPS59181402U publication Critical patent/JPS59181402U/en
Application granted granted Critical
Publication of JPH0614161Y2 publication Critical patent/JPH0614161Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第４図は本考案の第１の実施例を示し、第１
図は防眩ミラーの斜視図、第２図は同縦断側面図、第３
図は作用説明図の特性図、第４図は制御回路の電気的構
成図であり、又、第５肉乃至第８図は本考案の第２の実
施例を示し、第５図、第６図及び第７図は第２図、第４
図及び第３図相当図、第８図は検出電圧の波形図であり
、そして、第９図は本考案の第３の実施例を示す第４図
相当図である。 図面中、６は液晶パネル（電気光学素子）、７は平面鏡
、８は防眩ミラー、９は受光素子、１２は差動増幅回路
、１３は差動増幅器、１８は遅延回路、２２は負帰還回
路、２５は正帰還回路、３２は駆動回路を示す。　　　
゛1 to 4 show a first embodiment of the present invention.
The figure is a perspective view of the anti-glare mirror, the second figure is a longitudinal side view of the same, and the third figure is a perspective view of the anti-glare mirror.
4 is an electrical configuration diagram of the control circuit; FIGS. 5 to 8 show the second embodiment of the present invention; FIGS. Figures and Figure 7 are Figures 2 and 4.
3 and 3, FIG. 8 is a waveform diagram of the detected voltage, and FIG. 9 is a diagram corresponding to FIG. 4 showing a third embodiment of the present invention. In the drawing, 6 is a liquid crystal panel (electro-optical element), 7 is a plane mirror, 8 is an anti-glare mirror, 9 is a light receiving element, 12 is a differential amplifier circuit, 13 is a differential amplifier, 18 is a delay circuit, and 22 is a negative feedback 25 is a positive feedback circuit, and 32 is a drive circuit.
゛

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 印加電圧に応じて光の透過率が変化する電気光学素子を
備えその透過率が変化されることにより反射率を変化す
る防眩ミラーにおいて、前記電気光学素子を透過した光
を受光する受光素子と、この受光素子に基づく検出信号
と基準信号とを差動入力とする差動増幅器、この差動増
幅器の出力信号を遅延する遅延回路、前記差動増幅器に
その出力信号を負帰還させる負帰還回路及び前記差動増
幅器に前記遅延回路の出力信号を正帰還させる正帰還回
路を備えた差動増幅回路と、この差動増幅回路の出力信
号に応じた電圧を前記電気光学素子に印加する駆動回路
とを具備してなる防眩ミラーの制御回路。An anti-glare mirror that includes an electro-optical element whose light transmittance changes according to an applied voltage and whose reflectance changes as the transmittance changes, comprising: a light-receiving element that receives light transmitted through the electro-optical element; , a differential amplifier that receives a detection signal based on the light-receiving element and a reference signal as differential inputs, a delay circuit that delays the output signal of this differential amplifier, and a negative feedback circuit that provides negative feedback of the output signal to the differential amplifier. and a differential amplifier circuit including a positive feedback circuit that positively feeds back the output signal of the delay circuit to the differential amplifier, and a drive circuit that applies a voltage according to the output signal of the differential amplifier circuit to the electro-optical element. A control circuit for an anti-glare mirror comprising:
JP1983074960U 1982-09-29 1983-05-18 Anti-glare mirror control circuit Expired - Lifetime JPH0614161Y2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1983074960U JPH0614161Y2 (en) 1983-05-18 1983-05-18 Anti-glare mirror control circuit
US06/534,604 US4603946A (en) 1982-09-29 1983-09-22 Reflection controllable view mirror device for motor vehicle or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1983074960U JPH0614161Y2 (en) 1983-05-18 1983-05-18 Anti-glare mirror control circuit

Publications (2)

Publication Number Publication Date
JPS59181402U true JPS59181402U (en) 1984-12-04
JPH0614161Y2 JPH0614161Y2 (en) 1994-04-13

Family

ID=30205042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1983074960U Expired - Lifetime JPH0614161Y2 (en) 1982-09-29 1983-05-18 Anti-glare mirror control circuit

Country Status (1)

Country Link
JP (1) JPH0614161Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020117114A (en) * 2019-01-25 2020-08-06 市光工業株式会社 Vehicle mirror

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55149902A (en) * 1979-05-12 1980-11-21 Aoki Eng Kk Electronically controlled rear-vision mirror

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55149902A (en) * 1979-05-12 1980-11-21 Aoki Eng Kk Electronically controlled rear-vision mirror

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020117114A (en) * 2019-01-25 2020-08-06 市光工業株式会社 Vehicle mirror

Also Published As

Publication number Publication date
JPH0614161Y2 (en) 1994-04-13

Similar Documents

Publication Publication Date Title
JPS59181402U (en) Anti-glare mirror control circuit
JPS58135722U (en) EC light control device
JPS60143422U (en) LCD shading device
JPS5915001U (en) LCD anti-glare mirror
JPS5894140U (en) Semiconductor laser light intensity drop display device
JPS59150650U (en) auto-dimming mirror
JPS59161126U (en) display device
JPS6088386U (en) liquid crystal display device
JPS5951327U (en) Anti-glare mirror for vehicles
JPS59170823U (en) Anti-glare mirror
JPS5951325U (en) Anti-glare mirror for vehicles
JPS6068516U (en) vehicle sun visor
JPS5951302U (en) Anti-glare mirror
JPS61124U (en) Color LCD panel drive circuit
JPS5933354U (en) optical transmission circuit
JPS5953338U (en) Anti-glare mirror
JPS58120974U (en) Photovoltage electric field detection device
JPH0245524U (en)
JPS6083195U (en) BLIND
JPS606093U (en) blind device
JPS5951301U (en) Anti-glare mirror for vehicles
JPS591002U (en) LCD auto-dimming mirror
JPS5893883U (en) light sensor
JPS58133188U (en) liquid crystal display device
JPS6087996U (en) light shielding window glass