JPS641499U - - Google Patents

Info

Publication number
JPS641499U
JPS641499U JP9558787U JP9558787U JPS641499U JP S641499 U JPS641499 U JP S641499U JP 9558787 U JP9558787 U JP 9558787U JP 9558787 U JP9558787 U JP 9558787U JP S641499 U JPS641499 U JP S641499U
Authority
JP
Japan
Prior art keywords
illumination means
brightness
lighting
signal
lighting failure
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
JP9558787U
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 JP9558787U priority Critical patent/JPS641499U/ja
Publication of JPS641499U publication Critical patent/JPS641499U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Optical Devices Or Fibers (AREA)
  • Audible And Visible Signals (AREA)

Description

【図面の簡単な説明】
図面は本考案の一実施例を示す回路説明図であ
る。 1……けい光灯、4……光量検出部、5……表
示手段。

Claims (1)

    【実用新案登録請求の範囲】
  1. 照明手段の明るさを検出しこの明るさが所定の
    レベル以下の場合照明手段の点灯不良状態を示す
    信号を出力する光量検出部とこの信号に基づいて
    照明手段の点灯不良を表示する表示手段とを具備
    した照明装置。
JP9558787U 1987-06-22 1987-06-22 Pending JPS641499U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9558787U JPS641499U (ja) 1987-06-22 1987-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9558787U JPS641499U (ja) 1987-06-22 1987-06-22

Publications (1)

Publication Number Publication Date
JPS641499U true JPS641499U (ja) 1989-01-06

Family

ID=30960299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9558787U Pending JPS641499U (ja) 1987-06-22 1987-06-22

Country Status (1)

Country Link
JP (1) JPS641499U (ja)

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