JPS5920123U - exposure meter circuit - Google Patents

exposure meter circuit

Info

Publication number
JPS5920123U
JPS5920123U JP11438882U JP11438882U JPS5920123U JP S5920123 U JPS5920123 U JP S5920123U JP 11438882 U JP11438882 U JP 11438882U JP 11438882 U JP11438882 U JP 11438882U JP S5920123 U JPS5920123 U JP S5920123U
Authority
JP
Japan
Prior art keywords
transistor
exposure meter
meter circuit
emitter
base
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.)
Granted
Application number
JP11438882U
Other languages
Japanese (ja)
Other versions
JPH0128433Y2 (en
Inventor
憲史 仲川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Precision Corp
Original Assignee
Nidec Copal Corp
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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP11438882U priority Critical patent/JPS5920123U/en
Publication of JPS5920123U publication Critical patent/JPS5920123U/en
Application granted granted Critical
Publication of JPH0128433Y2 publication Critical patent/JPH0128433Y2/ja
Granted legal-status Critical Current

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  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

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 the drawing]

第１図及び第２図は夫々本考案の実施例を示した回路図
である。 Ｍ・・・メータ、Ｑ、、　Ｑ２・・・トランジスタ、Ｒ
×□、Ｒ×２・・・光導電素子、Ｒｖ、　Ｒ１，Ｒ２・
・・抵抗。1 and 2 are circuit diagrams showing embodiments of the present invention, respectively. M...Meter, Q, Q2...Transistor, R
×□, R×2...photoconductive element, Rv, R1, R2・
··resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エミッタホロア接続のトランジスタのベースに第一の光
導電素子を含んだ抵抗分圧回路を接続して、該トランジ
スタのコレクタ・エミッタ間の電圧に対応してメータを
駆動すると共に、該トランジスタの給電回路中に第二の
光導電素子を接続して該トランジスタのコレクタ電流を
安定化させるようにしたことを特徴とする露出計回路。A resistive voltage divider circuit including a first photoconductive element is connected to the base of the emitter-follower connected transistor, and a meter is driven in accordance with the voltage between the collector and emitter of the transistor, and the power supply circuit of the transistor is connected to the base of the transistor. 1. An exposure meter circuit characterized in that a second photoconductive element is connected to the transistor to stabilize the collector current of the transistor.
JP11438882U 1982-07-28 1982-07-28 exposure meter circuit Granted JPS5920123U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11438882U JPS5920123U (en) 1982-07-28 1982-07-28 exposure meter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11438882U JPS5920123U (en) 1982-07-28 1982-07-28 exposure meter circuit

Publications (2)

Publication Number Publication Date
JPS5920123U true JPS5920123U (en) 1984-02-07
JPH0128433Y2 JPH0128433Y2 (en) 1989-08-30

Family

ID=30264439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11438882U Granted JPS5920123U (en) 1982-07-28 1982-07-28 exposure meter circuit

Country Status (1)

Country Link
JP (1) JPS5920123U (en)

Also Published As

Publication number Publication date
JPH0128433Y2 (en) 1989-08-30

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