JPH0262512U - - Google Patents

Info

Publication number
JPH0262512U
JPH0262512U JP14114488U JP14114488U JPH0262512U JP H0262512 U JPH0262512 U JP H0262512U JP 14114488 U JP14114488 U JP 14114488U JP 14114488 U JP14114488 U JP 14114488U JP H0262512 U JPH0262512 U JP H0262512U
Authority
JP
Japan
Prior art keywords
circuit
illuminance detection
controlled
drive circuit
detection circuit
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
JP14114488U
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 JP14114488U priority Critical patent/JPH0262512U/ja
Publication of JPH0262512U publication Critical patent/JPH0262512U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal Display Device Control (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Description

【図面の簡単な説明】
第1図は、本考案の全体構成を示すブロツク図
、第2図は従来の実施例を示す回路図、第3図は
第2図における特性を示す図、第4図は本考案の
一実施例を示す回路図、第5図は第4図における
特性を示す図である。 1:電源端子、2,7:トランジスタ、3,5
,9:抵抗、4:発光ダイオード、6,8:光導
電セル。

Claims (1)

    【実用新案登録請求の範囲】
  1. 外光の明るさを検出する第1の照度検出回路お
    よび第2の照度検出回路と、前記第1の照度検出
    回路によつて、出力電流を制御される第1の駆動
    回路と、前記第1の駆動回路と直列に接続され、
    前記第2の照度検出回路によつて出力電流を制御
    される第2の駆動回路と、前記第2の駆動回路の
    出力によつて制御される発光回路からなることを
    特徴とする照明回路。
JP14114488U 1988-10-31 1988-10-31 Pending JPH0262512U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14114488U JPH0262512U (ja) 1988-10-31 1988-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14114488U JPH0262512U (ja) 1988-10-31 1988-10-31

Publications (1)

Publication Number Publication Date
JPH0262512U true JPH0262512U (ja) 1990-05-10

Family

ID=31405954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14114488U Pending JPH0262512U (ja) 1988-10-31 1988-10-31

Country Status (1)

Country Link
JP (1) JPH0262512U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003215534A (ja) * 2002-01-23 2003-07-30 Seiko Epson Corp 液晶ディスプレイのバックライト制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003215534A (ja) * 2002-01-23 2003-07-30 Seiko Epson Corp 液晶ディスプレイのバックライト制御装置

Similar Documents

Publication Publication Date Title
JPH0262512U (ja)
JPH0461804U (ja)
JPS6438524U (ja)
JPS61112481U (ja)
JPS61190700U (ja)
JPH01162740U (ja)
JPS6437344U (ja)
JPH03104999U (ja)
JPS6240799U (ja)
JPH0171455U (ja)
JPS6224538U (ja)
JPS6214513U (ja)
JPH0382414U (ja)
JPH0365185U (ja)
JPS625387U (ja)
JPS6384695U (ja)
JPH0299593U (ja)
JPH0214624U (ja)
JPS6151589U (ja)
JPS63201356U (ja)
JPS6199292U (ja)
JPS59144702U (ja) 携帯電灯
JPS5888552U (ja) 燃焼器の表示器
JPH01174899U (ja)
JPS63122274U (ja)