JPS6165594U - - Google Patents

Info

Publication number
JPS6165594U
JPS6165594U JP14576184U JP14576184U JPS6165594U JP S6165594 U JPS6165594 U JP S6165594U JP 14576184 U JP14576184 U JP 14576184U JP 14576184 U JP14576184 U JP 14576184U JP S6165594 U JPS6165594 U JP S6165594U
Authority
JP
Japan
Prior art keywords
display light
lighting time
light source
switching
dimming operation
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
JP14576184U
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 JP14576184U priority Critical patent/JPS6165594U/ja
Publication of JPS6165594U publication Critical patent/JPS6165594U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Audible And Visible Signals (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Description

【図面の簡単な説明】
第1図は本考案による装置の一実施例を示す回
路図、第2図は調光操作手段の操作態様を示す説
明図、第3図は第1図の装置の調光特性を示すグ
ラフ、及び第4図は従来の装置の調光特性を示す
グラフである。 LD…ランプ、1D…光源駆動回路、2…調光
回路、2a…発振回路、2b…コンパレータ、2
d…基準電圧発生回路、2e…基準電圧レベルシ
フト回路、VR…可変抵抗、SW…スイツチ。

Claims (1)

    【実用新案登録請求の範囲】
  1. 表示用光源の単位時間当りの点灯時間を制御し
    て調光を行う表示用調光装置において、調光操作
    手段と、該調光操作手段による調光操作に応じて
    表示用光源の単位時間当りの点灯時間を変化させ
    る手段と、前記点灯時間の変化の割合を周囲状況
    の変化に応じて切換える切換手段と、前記操作手
    段を特定の状態にすることにより前記切換手段の
    機能を無効にする手段とを備えることを特徴とす
    る表示用調光装置。
JP14576184U 1984-09-28 1984-09-28 Pending JPS6165594U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14576184U JPS6165594U (ja) 1984-09-28 1984-09-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14576184U JPS6165594U (ja) 1984-09-28 1984-09-28

Publications (1)

Publication Number Publication Date
JPS6165594U true JPS6165594U (ja) 1986-05-06

Family

ID=30704017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14576184U Pending JPS6165594U (ja) 1984-09-28 1984-09-28

Country Status (1)

Country Link
JP (1) JPS6165594U (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6111189B2 (ja) * 1980-09-05 1986-04-01 Idemitsu Petrochemical Co

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6111189B2 (ja) * 1980-09-05 1986-04-01 Idemitsu Petrochemical Co

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