JPS5945752U - light detection device - Google Patents

light detection device

Info

Publication number
JPS5945752U
JPS5945752U JP14058182U JP14058182U JPS5945752U JP S5945752 U JPS5945752 U JP S5945752U JP 14058182 U JP14058182 U JP 14058182U JP 14058182 U JP14058182 U JP 14058182U JP S5945752 U JPS5945752 U JP S5945752U
Authority
JP
Japan
Prior art keywords
detection device
light detection
diode
phototransistor
comparator
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
JP14058182U
Other languages
Japanese (ja)
Inventor
仮屋　実文
Original Assignee
東芝テック株式会社
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 by 東芝テック株式会社 filed Critical 東芝テック株式会社
Priority to JP14058182U priority Critical patent/JPS5945752U/en
Publication of JPS5945752U publication Critical patent/JPS5945752U/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は提来例を示す回路図、第２図はこの原案の実施
例を示す回路図、第３図は同実施例における各部の電圧
波形図である。 ’ｌ’ｌＴｒ・・・フォトトランジスタ、２３・・・受
光素：、　子用電流制限抵抗、２４・・・ダイオード、
２５・・・コ、　ンデンサ、２７・・・比較器。FIG. 1 is a circuit diagram showing a conventional example, FIG. 2 is a circuit diagram showing an embodiment of this original proposal, and FIG. 3 is a voltage waveform diagram of various parts in the same embodiment. 'l'lTr...Phototransistor, 23...Photodetector: Child current limiting resistor, 24...Diode,
25...condenser, 27...comparator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 直流電源に抵抗を介して接続されたフォトトランジスタ
と、このフォトトランジスタにダイオードを介して並列
に接続されたコンデンサと、上記ダイオードのアノード
電位とカソード電位とを比較し、その大小に応動して反
転する信号を出力する比較器とからなることを特徴とす
る光検出装置１A phototransistor connected to a DC power supply via a resistor, a capacitor connected in parallel to this phototransistor via a diode, and the anode potential and cathode potential of the diode are compared and inverted in response to the magnitude. A photodetecting device 1 characterized by comprising a comparator that outputs a signal that
JP14058182U 1982-09-17 1982-09-17 light detection device Pending JPS5945752U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14058182U JPS5945752U (en) 1982-09-17 1982-09-17 light detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14058182U JPS5945752U (en) 1982-09-17 1982-09-17 light detection device

Publications (1)

Publication Number Publication Date
JPS5945752U true JPS5945752U (en) 1984-03-27

Family

ID=30314695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14058182U Pending JPS5945752U (en) 1982-09-17 1982-09-17 light detection device

Country Status (1)

Country Link
JP (1) JPS5945752U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523514B2 (en) * 1974-05-22 1980-06-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523514B2 (en) * 1974-05-22 1980-06-23

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