JPH01147438A - Light receiving device for camera - Google Patents

Light receiving device for camera

Info

Publication number
JPH01147438A
JPH01147438A JP62306738A JP30673887A JPH01147438A JP H01147438 A JPH01147438 A JP H01147438A JP 62306738 A JP62306738 A JP 62306738A JP 30673887 A JP30673887 A JP 30673887A JP H01147438 A JPH01147438 A JP H01147438A
Authority
JP
Japan
Prior art keywords
flux
mirror
box bottom
mirror box
photodetector
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
JP62306738A
Other languages
Japanese (ja)
Inventor
Atsushi Terajima
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 JP62306738A priority Critical patent/JPH01147438A/en
Publication of JPH01147438A publication Critical patent/JPH01147438A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To attain the coexistence of a photometric system and a focus detecting system in a single optical system and to make the best use of the bottom space of a camera main body by providing an optical path leading a flux from a photographing lens to a photodetector for range finding with a reflecting means possessing photodetectors.
CONSTITUTION: The title device is constituted such that a flux from the photographing lens 1 is transmitted from the semi-transparent part of a main mirror 2 and is reflected to a mirror box bottom part 10 by a submirror 7. The flux led to the mirror box bottom part 10 passes through a filter 8 correcting relative luminosity factor and a lens doubling as photometry and focus detection, and makes incident on a metering photodetector 20a provided on part of the reflecting means 20. About 80% of the light incident on the reflecting mirror 20 is reflected on an aluminum surface, and is led to the range finding optical system possessing a light detecting means 14 to obtain focus detection information regarding an object. Two light receiving devices can be efficiently arranged in the small space of the mirror box bottom.
COPYRIGHT: (C)1989,JPO&Japio
JP62306738A 1987-12-03 1987-12-03 Light receiving device for camera Pending JPH01147438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62306738A JPH01147438A (en) 1987-12-03 1987-12-03 Light receiving device for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62306738A JPH01147438A (en) 1987-12-03 1987-12-03 Light receiving device for camera

Publications (1)

Publication Number Publication Date
JPH01147438A true JPH01147438A (en) 1989-06-09

Family

ID=17960708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62306738A Pending JPH01147438A (en) 1987-12-03 1987-12-03 Light receiving device for camera

Country Status (1)

Country Link
JP (1) JPH01147438A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007206173A (en) * 2006-01-31 2007-08-16 Pioneer Electronic Corp Display device
US7974082B2 (en) 2007-08-27 2011-07-05 Canon Kabushiki Kaisha Display apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280635A (en) * 1985-10-04 1987-04-14 Canon Inc Photometric device for camera
JPS6280634A (en) * 1985-10-04 1987-04-14 Canon Inc Photometric device for camera

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6280635A (en) * 1985-10-04 1987-04-14 Canon Inc Photometric device for camera
JPS6280634A (en) * 1985-10-04 1987-04-14 Canon Inc Photometric device for camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007206173A (en) * 2006-01-31 2007-08-16 Pioneer Electronic Corp Display device
US7974082B2 (en) 2007-08-27 2011-07-05 Canon Kabushiki Kaisha Display apparatus

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