JPS5346725A - Exposure controller of cameras - Google Patents

Exposure controller of cameras

Info

Publication number
JPS5346725A
JPS5346725A JP12173776A JP12173776A JPS5346725A JP S5346725 A JPS5346725 A JP S5346725A JP 12173776 A JP12173776 A JP 12173776A JP 12173776 A JP12173776 A JP 12173776A JP S5346725 A JPS5346725 A JP S5346725A
Authority
JP
Japan
Prior art keywords
cameras
plane
exposure controller
measures
output
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
JP12173776A
Other languages
Japanese (ja)
Inventor
Ryoichi Suzuki
Tokuichi Tsunekawa
Hiroyoshi Kawana
Yusuke Ono
Mutsuhide Matsuda
Takashi Uchiyama
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP12173776A priority Critical patent/JPS5346725A/en
Priority to US05/839,832 priority patent/US4131350A/en
Publication of JPS5346725A publication Critical patent/JPS5346725A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)

Abstract

PURPOSE: To perform correction of an exposure control circuit and achieve the optimization of exposures by comparing the output of a photometric circuit which measures the difference in reflection factor between shutter curtain plane and film plane and the output of a photometric circuit which measures the reflected light from the film plane and shutter curtain plane.
COPYRIGHT: (C)1978,JPO&Japio
JP12173776A 1976-10-08 1976-10-08 Exposure controller of cameras Pending JPS5346725A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP12173776A JPS5346725A (en) 1976-10-08 1976-10-08 Exposure controller of cameras
US05/839,832 US4131350A (en) 1976-10-08 1977-10-06 Exposure control device for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12173776A JPS5346725A (en) 1976-10-08 1976-10-08 Exposure controller of cameras

Publications (1)

Publication Number Publication Date
JPS5346725A true JPS5346725A (en) 1978-04-26

Family

ID=14818622

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12173776A Pending JPS5346725A (en) 1976-10-08 1976-10-08 Exposure controller of cameras

Country Status (1)

Country Link
JP (1) JPS5346725A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56107220A (en) * 1980-01-31 1981-08-26 Olympus Optical Co Ltd Reflective photometry device of camera using focal plane shutter
CN1293432C (en) * 2001-06-27 2007-01-03 夏普公司 Deveoping device, and image forming device having same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56107220A (en) * 1980-01-31 1981-08-26 Olympus Optical Co Ltd Reflective photometry device of camera using focal plane shutter
CN1293432C (en) * 2001-06-27 2007-01-03 夏普公司 Deveoping device, and image forming device having same

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