JPH0380394U - - Google Patents

Info

Publication number
JPH0380394U
JPH0380394U JP14080889U JP14080889U JPH0380394U JP H0380394 U JPH0380394 U JP H0380394U JP 14080889 U JP14080889 U JP 14080889U JP 14080889 U JP14080889 U JP 14080889U JP H0380394 U JPH0380394 U JP H0380394U
Authority
JP
Japan
Prior art keywords
light emitting
emitting element
output
hourglass
photocurrent
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
JP14080889U
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 JP14080889U priority Critical patent/JPH0380394U/ja
Publication of JPH0380394U publication Critical patent/JPH0380394U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Electronic Switches (AREA)

Description

【図面の簡単な説明】
第1図及び第2図は本考案の砂時計の実施例の
概要図。第3図は本考案の砂時計の実施例の回路
図。第4図は本考案の砂時計の実施例のタイミン
グチヤート。第5図、第6図は、本考案の砂時計
の他の実施例の回路図。 2……発光ダイオード、3……フオトトランジ
スタ、37……出力制御回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 a 砂時計のくびれ部に発光素子と、 b 前記発光素子に対面する位置に発光素子を備
    え、 c 前記受光素子と前記発光素子との間に砂が通
    つている時と、砂が落ちきつてしまつたときの前
    記受光素子の光電流の変化を検出する光電流検出
    回路と、 d 前記光電流検出回路の出力によつて聴覚的出
    力等の出力をオン/オフする出力制御回路とを備
    えたことを特徴とする砂時計。
JP14080889U 1989-12-05 1989-12-05 Pending JPH0380394U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14080889U JPH0380394U (ja) 1989-12-05 1989-12-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14080889U JPH0380394U (ja) 1989-12-05 1989-12-05

Publications (1)

Publication Number Publication Date
JPH0380394U true JPH0380394U (ja) 1991-08-16

Family

ID=31687752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14080889U Pending JPH0380394U (ja) 1989-12-05 1989-12-05

Country Status (1)

Country Link
JP (1) JPH0380394U (ja)

Similar Documents

Publication Publication Date Title
JPH0380394U (ja)
JPH025296U (ja)
JPH02128585U (ja)
JPH0187979U (ja)
JPH0257373U (ja)
JPH0339384U (ja)
JPS60129044U (ja) 自動点滅器
JPH0295809U (ja)
JPS6413699U (ja)
JPH0247505U (ja)
JPS62108142U (ja)
JPH0212130U (ja)
JPH0211420U (ja)
JPH0357641U (ja)
JPH02125359U (ja)
JPS62137533U (ja)
JPH0472330U (ja)
JPH0411416U (ja)
JPS63108288U (ja)
JPH01149144U (ja)
JPH0244716U (ja)
JPH02108686U (ja)
JPH03130581U (ja)
JPS6150343U (ja)
JPS63102199U (ja)