JPS61108955U - - Google Patents

Info

Publication number
JPS61108955U
JPS61108955U JP19340184U JP19340184U JPS61108955U JP S61108955 U JPS61108955 U JP S61108955U JP 19340184 U JP19340184 U JP 19340184U JP 19340184 U JP19340184 U JP 19340184U JP S61108955 U JPS61108955 U JP S61108955U
Authority
JP
Japan
Prior art keywords
light emitting
light
vehicle
sensor
receiving part
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
Application number
JP19340184U
Other languages
English (en)
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 filed Critical
Priority to JP19340184U priority Critical patent/JPS61108955U/ja
Publication of JPS61108955U publication Critical patent/JPS61108955U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す要部回路図、
第2図はその温度特性図、第3図は従来の車両用
雨滴センサの一例を示す構成図、第4図は発光パ
ワーの変動要因の説明図である。 図中、1は発光部、2は受光部、3は光路、4
は雨滴、12は発光回路、Dは発光ダイオード
(発光素子),THはサーミスタ(感温抵抗素
子),Rは電流制限用抵抗、Rは変化率抑制
用抵抗である。

Claims (1)

    【実用新案登録請求の範囲】
  1. 発光部と受光部の間に雨滴が横断できる光路を
    形成して該受光部への入射光量の変化から雨滴を
    検出する車両用雨滴センサにおいて、該発光部で
    使用する発光素子の温度特性を補償する感温抵抗
    素子と直列に接続し、該発光素子の発光パワーが
    一定となるように駆動電流値を変化させるように
    してなることを特徴とする車両用雨滴センサ。
JP19340184U 1984-12-20 1984-12-20 Pending JPS61108955U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19340184U JPS61108955U (ja) 1984-12-20 1984-12-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19340184U JPS61108955U (ja) 1984-12-20 1984-12-20

Publications (1)

Publication Number Publication Date
JPS61108955U true JPS61108955U (ja) 1986-07-10

Family

ID=30750824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19340184U Pending JPS61108955U (ja) 1984-12-20 1984-12-20

Country Status (1)

Country Link
JP (1) JPS61108955U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01171382U (ja) * 1988-05-23 1989-12-05
JP2013071518A (ja) * 2011-09-27 2013-04-22 Niles Co Ltd 雨滴検出装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01171382U (ja) * 1988-05-23 1989-12-05
JP2013071518A (ja) * 2011-09-27 2013-04-22 Niles Co Ltd 雨滴検出装置

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