JPH0350298U - - Google Patents

Info

Publication number
JPH0350298U
JPH0350298U JP10733789U JP10733789U JPH0350298U JP H0350298 U JPH0350298 U JP H0350298U JP 10733789 U JP10733789 U JP 10733789U JP 10733789 U JP10733789 U JP 10733789U JP H0350298 U JPH0350298 U JP H0350298U
Authority
JP
Japan
Prior art keywords
light receiving
receiving element
desk
alarm
brightness
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
JP10733789U
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 JP10733789U priority Critical patent/JPH0350298U/ja
Publication of JPH0350298U publication Critical patent/JPH0350298U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Emergency Alarm Devices (AREA)

Description

【図面の簡単な説明】
第１図は、この考案にまつわるアラーム発生機
を有する机の斜視図、第２図は、受光部分の断面
図、第３図は、電気部の接続図である。 １……受光部、１０……光電圧変換機、１１…
…受光素子、１９……保護板、２０……基準電圧
発生機、３０……電圧比較機、４０……電子スイ
ツチ、５０……アラーム発生機、６０……スイツ
チ、７０……スピーカー穴、８０……電池ボツク
ス、ＳＰ……スピーカー。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 受光素子と、 アラーム発生機とを有し、 光の明暗に応じて、アラーム音を発生されるよ
    うなされたことを特徴とする机。 (2) 上記の受光素子が机中央より身体側へある
    こと。
JP10733789U 1989-09-13 1989-09-13 Pending JPH0350298U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10733789U JPH0350298U (ja) 1989-09-13 1989-09-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10733789U JPH0350298U (ja) 1989-09-13 1989-09-13

Publications (1)

Publication Number Publication Date
JPH0350298U true JPH0350298U (ja) 1991-05-16

Family

ID=31656029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10733789U Pending JPH0350298U (ja) 1989-09-13 1989-09-13

Country Status (1)

Country Link
JP (1) JPH0350298U (ja)

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