JPS57621A - Exposure controller - Google Patents

Exposure controller

Info

Publication number
JPS57621A
JPS57621A JP7451380A JP7451380A JPS57621A JP S57621 A JPS57621 A JP S57621A JP 7451380 A JP7451380 A JP 7451380A JP 7451380 A JP7451380 A JP 7451380A JP S57621 A JPS57621 A JP S57621A
Authority
JP
Japan
Prior art keywords
photocurrent
differential amplifier
voltage
terminal
capacitor
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
JP7451380A
Other languages
English (en)
Inventor
Masabumi Yamazaki
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP7451380A priority Critical patent/JPS57621A/ja
Publication of JPS57621A publication Critical patent/JPS57621A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/081—Analogue circuits
    • G03B7/083—Analogue circuits for control of exposure time

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Control For Cameras (AREA)
JP7451380A 1980-06-03 1980-06-03 Exposure controller Pending JPS57621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7451380A JPS57621A (en) 1980-06-03 1980-06-03 Exposure controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7451380A JPS57621A (en) 1980-06-03 1980-06-03 Exposure controller

Publications (1)

Publication Number Publication Date
JPS57621A true JPS57621A (en) 1982-01-05

Family

ID=13549480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7451380A Pending JPS57621A (en) 1980-06-03 1980-06-03 Exposure controller

Country Status (1)

Country Link
JP (1) JPS57621A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61246727A (ja) * 1985-04-24 1986-11-04 Olympus Optical Co Ltd カメラの自動露出回路
KR20150111838A (ko) 2014-03-26 2015-10-06 가부시키가이샤 세이부 기켄 회전식 가스 흡착 농축 장치

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61246727A (ja) * 1985-04-24 1986-11-04 Olympus Optical Co Ltd カメラの自動露出回路
KR20150111838A (ko) 2014-03-26 2015-10-06 가부시키가이샤 세이부 기켄 회전식 가스 흡착 농축 장치

Similar Documents

Publication Publication Date Title
DE69012982D1 (de) Signalpegel-Messanordnung mit Offset-Korrekturmitteln.
GB1293771A (en) Improvements relating to exposure control systems for photographic apparatus
JPS57621A (en) Exposure controller
ATE197210T1 (de) Hochempfindliche automatische leistungssteuerung, basierend auf einem differenzverstärker
SE7906152L (sv) Krets for automatisk forsterkningsreglering
GB1231528A (ja)
GB1283172A (en) Direct-current amplifying circuit
JPS5515030A (en) Infrared spectrophotometer
GB1430775A (en) Light intenstity integrating and memory circuit
JPS5679511A (en) Automatic gain control circuit
JPS5379453A (en) Automatic gain control system
JPS5761349A (en) Optical level monitor circuit
JPS56123557A (en) Speed controller for electric photocopy machine
JPS5730955A (en) Detecting circuit for speed
JPS5689133A (en) Muting circuit
JPS5668806A (en) Temperature control device
JPS5672509A (en) Dc gain control device
JPS5748812A (en) Amplifier
JPS55150616A (en) Pulse width amplifying circuit
JPS56104594A (en) Automatic color balance device
JPS54128251A (en) Mute circuit
JPS57188163A (en) Signal discriminator
JPS5757091A (en) Correction device for linearity of horizontal deflection
JPS5769915A (en) Automatic gain control circuit
JPS5781777A (en) Signal detecting circuit