JPS55130523A - Automatic focus system single-lens reflex camera - Google Patents

Automatic focus system single-lens reflex camera

Info

Publication number
JPS55130523A
JPS55130523A JP3889479A JP3889479A JPS55130523A JP S55130523 A JPS55130523 A JP S55130523A JP 3889479 A JP3889479 A JP 3889479A JP 3889479 A JP3889479 A JP 3889479A JP S55130523 A JPS55130523 A JP S55130523A
Authority
JP
Japan
Prior art keywords
mirror
film
photo detector
photo
distance measuring
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
JP3889479A
Other languages
Japanese (ja)
Inventor
Ikuo Maeda
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP3889479A priority Critical patent/JPS55130523A/en
Publication of JPS55130523A publication Critical patent/JPS55130523A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To surely secure the quantity of incident light to a finder and photo detector by obliquely providing a photo detecting mirror between focal plate and main mirror and disposing a distance measuring photo detector on its reflected light path.
CONSTITUTION: A photo detecting mirror 8 consisting of a semilight transmittable mirror or nonlight-transmittable mirror is obliquely provided to the position of not cutting off the incident luminous flux to a film 7 between the focal plate 4 and main mirror 5 of the finder optical system. A distance measuring photo detector 3 is disposed on the reflected light path by this photo detecting mirror 8. As a result of this, the main mirror 5 is disposed on the incident light path to the film 7 and the incident light from the photographing lens 1 is imaged on the matt surface of the focal plate 4. At the same time, part of said image is changed of optical path by the photo detecting mirror 8 and is imaged on the distance measuring photo detector 3, whereby the distance measurement is acomplished. On the other hand, the main mirror 5 is retreated to the position of not interfering the incident luminous flux to the film 7 and the image is formed on the film 7, whereby exposure is done.
COPYRIGHT: (C)1980,JPO&Japio
JP3889479A 1979-03-31 1979-03-31 Automatic focus system single-lens reflex camera Pending JPS55130523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3889479A JPS55130523A (en) 1979-03-31 1979-03-31 Automatic focus system single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3889479A JPS55130523A (en) 1979-03-31 1979-03-31 Automatic focus system single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS55130523A true JPS55130523A (en) 1980-10-09

Family

ID=12537902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3889479A Pending JPS55130523A (en) 1979-03-31 1979-03-31 Automatic focus system single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS55130523A (en)

Similar Documents

Publication Publication Date Title
JPS5817786A (en) Controlling system of electric charge storing time for solid-state image pickup device
JPS55130523A (en) Automatic focus system single-lens reflex camera
JPS59146008A (en) Focusing detector
JPH02181109A (en) Automatic focusing device for camera
JPS6057826A (en) Close-up photographic device of automatic focusing camera
JPS54121123A (en) Optical device of focusing detection for camera
JPS55106424A (en) Single-lens reflex camera
JPS5936232A (en) Photometric device of single-lens reflex camera
JPS54107337A (en) Focusing device of single-lens reflex camera
JPH01155324A (en) Single-lens reflex camera
JPH0224615A (en) Focus detecting device
JPS58211108A (en) Focusing detector and setter for endoscope
JPS57122426A (en) Stroboscopic light confirming device
JPS55106427A (en) Single-lens reflex camera
JPS552232A (en) Focusing optical device for camera
JPS626231A (en) Range finder and photometer for single-lens reflex camera
JPS57115527A (en) Photometry device for single-lens reflex camera
JPS55159417A (en) Aperture value detector
JPS56128923A (en) Focus detector
JPS5612626A (en) Light-shielding device of single-lens reflex camera
JPH0395534A (en) Single-lens reflex camera with function preventing hand-shaking
JPH03153222A (en) Special picture photographing method and light shielding member and indication member used for the same method
JPS5887513A (en) Focus detecting device and focused position setting device
JPS54121122A (en) Focusing detector of single lens reflex camera
JPS5936203A (en) Picture processing device