JPH0281243U - - Google Patents
Info
- Publication number
- JPH0281243U JPH0281243U JP16086588U JP16086588U JPH0281243U JP H0281243 U JPH0281243 U JP H0281243U JP 16086588 U JP16086588 U JP 16086588U JP 16086588 U JP16086588 U JP 16086588U JP H0281243 U JPH0281243 U JP H0281243U
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- illuminance
- reflectance
- mirror
- voltage
- 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
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Elements Other Than Lenses (AREA)
Description
第１図は本考案による防眩ミラー装置の一実施
例を示す図、第２図は本実施例に適用されるＣｄ
ｓセンサの特性を説明するための図、第３図は定
電圧と設定電圧の関係を示す図、第４図は本実施
例による比較器の動作特性を説明するための図、
第５図は従来技術による防眩ミラー装置を示す図
である。
１……後方センサ、２……前方センサ、３……
比較器、４……定電圧回路、５……ミラー駆動回
路、６……防眩ミラー、Ｖｓｔ……定電圧、Ｖｓ
ｅｔ……設定電圧。
Fig. 1 shows an embodiment of the anti-glare mirror device according to the present invention, and Fig. 2 shows the Cd applied to this embodiment.
A diagram for explaining the characteristics of the s sensor, FIG. 3 is a diagram showing the relationship between constant voltage and set voltage, and FIG. 4 is a diagram for explaining the operating characteristics of the comparator according to this embodiment.
FIG. 5 is a diagram showing an anti-glare mirror device according to the prior art. 1... Rear sensor, 2... Front sensor, 3...
Comparator, 4... constant voltage circuit, 5... mirror drive circuit, 6... anti-glare mirror, Vst... constant voltage, Vs
et... Setting voltage.
Claims (1)
例するセンサを用いて検出し、この検出結果に応
じてミラー反射率を調整する防眩ミラー装置にお
いて、後方照度を検出する後方センサと、前方照
度を検出し且つ該後方センサと直列接続される前
方センサと、前記後方センサ、前方センサの順に
定電圧を供給する定電圧電源回路と、該前方及び
後方センサの中点電圧と設定電圧とを比較する比
較器と、該比較器の指示により防眩ミラーの反射
率を調整するミラー駆動回路とを備え、前記中点
電圧が設定電圧を越えた場合に比較器がミラー駆
動回路に防眩ミラーの反射率を低下するように指
示する様に構成したことを特徴とする防眩ミラー
装置。 In an anti-glare mirror device that detects the front and rear illuminance of a vehicle using a sensor whose resistance value is inversely proportional to the illuminance, and adjusts the mirror reflectance according to the detection result, a rear sensor that detects the rear illuminance and a front illuminance are used. A front sensor connected in series with the rear sensor, a constant voltage power supply circuit that supplies a constant voltage to the rear sensor and the front sensor in that order, and a comparison between the midpoint voltage of the front and rear sensors and the set voltage. and a mirror drive circuit that adjusts the reflectance of the anti-glare mirror according to instructions from the comparator, and when the midpoint voltage exceeds the set voltage, the comparator causes the mirror drive circuit to adjust the reflectance of the anti-glare mirror. An anti-glare mirror device characterized in that it is configured to instruct to reduce reflectance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16086588U JPH0281243U (en) | 1988-12-13 | 1988-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16086588U JPH0281243U (en) | 1988-12-13 | 1988-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0281243U true JPH0281243U (en) | 1990-06-22 |
Family
ID=31443307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16086588U Pending JPH0281243U (en) | 1988-12-13 | 1988-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0281243U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155538A (en) * | 1978-05-30 | 1979-12-07 | Murakami Kaimeido Kk | Automatic dazzling preventive mirror provided with automatic changeeover sensitivity correcting mechanism |
-
1988
- 1988-12-13 JP JP16086588U patent/JPH0281243U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54155538A (en) * | 1978-05-30 | 1979-12-07 | Murakami Kaimeido Kk | Automatic dazzling preventive mirror provided with automatic changeeover sensitivity correcting mechanism |
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