JPS5848824A - 閃光装置用測光回路 - Google Patents

閃光装置用測光回路

Info

Publication number
JPS5848824A
JPS5848824A JP56146082A JP14608281A JPS5848824A JP S5848824 A JPS5848824 A JP S5848824A JP 56146082 A JP56146082 A JP 56146082A JP 14608281 A JP14608281 A JP 14608281A JP S5848824 A JPS5848824 A JP S5848824A
Authority
JP
Japan
Prior art keywords
circuit
signal
turned
photodiode
operational amplifier
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
JP56146082A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0522893B2 (enrdf_load_html_response
Inventor
Osamu Yoneda
修 米田
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.)
Nikon Corp
Original Assignee
Nikon Corp
Nippon Kogaku KK
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 Nikon Corp, Nippon Kogaku KK filed Critical Nikon Corp
Priority to JP56146082A priority Critical patent/JPS5848824A/ja
Priority to US06/417,170 priority patent/US4462670A/en
Publication of JPS5848824A publication Critical patent/JPS5848824A/ja
Publication of JPH0522893B2 publication Critical patent/JPH0522893B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Exposure Control For Cameras (AREA)
  • Stroboscope Apparatuses (AREA)
JP56146082A 1981-09-18 1981-09-18 閃光装置用測光回路 Granted JPS5848824A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56146082A JPS5848824A (ja) 1981-09-18 1981-09-18 閃光装置用測光回路
US06/417,170 US4462670A (en) 1981-09-18 1982-09-13 Light measuring apparatus for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56146082A JPS5848824A (ja) 1981-09-18 1981-09-18 閃光装置用測光回路

Publications (2)

Publication Number Publication Date
JPS5848824A true JPS5848824A (ja) 1983-03-22
JPH0522893B2 JPH0522893B2 (enrdf_load_html_response) 1993-03-31

Family

ID=15399704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56146082A Granted JPS5848824A (ja) 1981-09-18 1981-09-18 閃光装置用測光回路

Country Status (1)

Country Link
JP (1) JPS5848824A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126548A (ja) * 1983-12-12 1985-07-06 株式会社荏原製作所 省エネルギ−型ヒ−トポンプ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5473029A (en) * 1977-11-22 1979-06-12 Fuji Photo Optical Co Ltd Automatic stroboscopic control circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5473029A (en) * 1977-11-22 1979-06-12 Fuji Photo Optical Co Ltd Automatic stroboscopic control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60126548A (ja) * 1983-12-12 1985-07-06 株式会社荏原製作所 省エネルギ−型ヒ−トポンプ

Also Published As

Publication number Publication date
JPH0522893B2 (enrdf_load_html_response) 1993-03-31

Similar Documents

Publication Publication Date Title
US4425033A (en) Camera employing a flash illumination device and a flash photographing system
JPH0435869Y2 (enrdf_load_html_response)
GB2215550A (en) Autofocus camera
US5541704A (en) Camera with LED photometer
US3610122A (en) Shutter timing system
JPS5848824A (ja) 閃光装置用測光回路
US4200370A (en) Camera for daylight and flash photography
JPH045971B2 (enrdf_load_html_response)
US4462670A (en) Light measuring apparatus for camera
JPS6129486B2 (enrdf_load_html_response)
US4021822A (en) Electrically controlled shutter
US4057811A (en) Quench strobe with predetermined quench rate
US4256391A (en) Flash responsive exposure time control system
GB2112949A (en) Programmed exposure control
JP4250351B2 (ja) ストロボ装置
JP3574154B2 (ja) ストロボ調光回路
JPH036897Y2 (enrdf_load_html_response)
US4475801A (en) Flashlight photography preparing device of a camera
JPH052905Y2 (enrdf_load_html_response)
JPH0462370B2 (enrdf_load_html_response)
JP3947325B2 (ja) ストロボ装置
JPS5922496Y2 (ja) カメラの測光回路
JPS6360369B2 (enrdf_load_html_response)
JP3345126B2 (ja) ストロボ装置及びスチルビデオカメラ
US3827060A (en) Automatic camera shutter controls utilizing photoelectrically converted pulses