JPS552232A - Focusing optical device for camera - Google Patents

Focusing optical device for camera

Info

Publication number
JPS552232A
JPS552232A JP7409078A JP7409078A JPS552232A JP S552232 A JPS552232 A JP S552232A JP 7409078 A JP7409078 A JP 7409078A JP 7409078 A JP7409078 A JP 7409078A JP S552232 A JPS552232 A JP S552232A
Authority
JP
Japan
Prior art keywords
holding
optical fiber
arbitrary
distance measuring
focal plane
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
JP7409078A
Other languages
Japanese (ja)
Inventor
Tetsuya Kimura
Akiteru Kimura
Hideko Takimoto
Yoshihiro Matsumoto
Akimasa Wakabayashi
Kazuo Yamamoto
Shoji Yoshida
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 JP7409078A priority Critical patent/JPS552232A/en
Publication of JPS552232A publication Critical patent/JPS552232A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make production and constitution simple and make possible installation of a distance measuring photo detector in arbitrary positions by contacting the incident end of an optical fiber to the focus glass face on which the subject is imaged to receive a part of the subject image and directing its exit end to the distance measuring photo detector.
CONSTITUTION: The focus glass 15 of a single-lens reflex camera is provided with ground glass form focal plane 15a and Fresnel lens face 15b, and the subject image is formed on the focal place 15a. There is generally a sufficient clearance between the focus glass 15 and condenser lens 16. By making use of this clearance, the arbitrary portion of the subject image formed on the focal plane 15a is directed from the Fresnel lens face 15b side to a distance measuring photo detector 20 through a photo detecting part 18 and optical fiber 19. The photo detecting part 18 measures the distance by slidably providing a holding member 21 having an annular frame on the Fresnel lens face 15b, holding the optical fiber 19 with said holding member 21 in such a manner that its incident part positions within the annular frame and entering the arbitrary portion of the subject imaged on the focal plane 15a into the optical fiber 19 with the reflecting mirror 22 through movement of the holding member 21.
COPYRIGHT: (C)1980,JPO&Japio
JP7409078A 1978-06-21 1978-06-21 Focusing optical device for camera Pending JPS552232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7409078A JPS552232A (en) 1978-06-21 1978-06-21 Focusing optical device for camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7409078A JPS552232A (en) 1978-06-21 1978-06-21 Focusing optical device for camera

Publications (1)

Publication Number Publication Date
JPS552232A true JPS552232A (en) 1980-01-09

Family

ID=13537124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7409078A Pending JPS552232A (en) 1978-06-21 1978-06-21 Focusing optical device for camera

Country Status (1)

Country Link
JP (1) JPS552232A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63110658A (en) * 1986-10-27 1988-05-16 Nec Kansai Ltd Manufacture of semiconductor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63110658A (en) * 1986-10-27 1988-05-16 Nec Kansai Ltd Manufacture of semiconductor device

Similar Documents

Publication Publication Date Title
JPS552232A (en) Focusing optical device for camera
JPS59191020A (en) Automatic focusing camera
JPS59146008A (en) Focusing detector
JPS53105223A (en) Optical system of distance detector for automatic focusing
JPS6057826A (en) Close-up photographic device of automatic focusing camera
JPS556361A (en) Focus measuring position assigning device in auto-focusing camera
JPS54121123A (en) Optical device of focusing detection for camera
JPS54107337A (en) Focusing device of single-lens reflex camera
JPS5887513A (en) Focus detecting device and focused position setting device
JPH0224615A (en) Focus detecting device
JPS58211108A (en) Focusing detector and setter for endoscope
JPS5492321A (en) Optical system for focus detecting of single-lens reflex camera
JPS54107338A (en) Focusing device of single-lens reflex camera
JPS56128923A (en) Focus detector
JPS5936203A (en) Picture processing device
JPS55130521A (en) Single-lens reflex camera provided with ttl type focus detector
JPS58121013A (en) Focus detecting device for endoscope and focus setting device for endoscope
JPS55159417A (en) Aperture value detector
JPS55106425A (en) Single-lens reflex camera
JPS55106427A (en) Single-lens reflex camera
JPS5887515A (en) Focus detecting device and focused position setting device
JPS55130523A (en) Automatic focus system single-lens reflex camera
JPS59229508A (en) Range finding device for camera
JPS5552030A (en) Focusing optical device for single-lens reflex camera
JPS55106430A (en) Automatic focusing camera