JPS58121008A - Focusing detecting device and focusing setting device - Google Patents

Focusing detecting device and focusing setting device

Info

Publication number
JPS58121008A
JPS58121008A JP411782A JP411782A JPS58121008A JP S58121008 A JPS58121008 A JP S58121008A JP 411782 A JP411782 A JP 411782A JP 411782 A JP411782 A JP 411782A JP S58121008 A JPS58121008 A JP S58121008A
Authority
JP
Japan
Prior art keywords
focusing
light
opening part
image
photographed
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
JP411782A
Other languages
Japanese (ja)
Other versions
JPH0225487B2 (en
Inventor
Yoshio Shishido
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optic 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 Corp, Olympus Optic Co Ltd filed Critical Olympus Corp
Priority to JP57004117A priority Critical patent/JPH0225487B2/ja
Priority claimed from US06/442,087 external-priority patent/US4538062A/en
Priority claimed from AT82306169T external-priority patent/AT21778T/en
Publication of JPS58121008A publication Critical patent/JPS58121008A/en
Publication of JPH0225487B2 publication Critical patent/JPH0225487B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28Systems for automatic generation of focusing signals
    • G02B7/30Systems for automatic generation of focusing signals using parallactic triangle with a base line
    • G02B7/32Systems for automatic generation of focusing signals using parallactic triangle with a base line using active means, e.g. light emitter

Abstract

PURPOSE:To detect focusing with high accuracy, by projecting light to an object to be photographed, from >=2 points through a projection optical system, and placing a detecting means having an opening part or a non-opening part, at a conjugate position with the image forming surface and in places extending over >=2 points. CONSTITUTION:In a focusing detecting device stored in a camera adaptor of an endoscope, a slender photoconducting surface 31 is provided in the rear of an image re-forming lens 10 on the reflection optical axis of a focusing mirror 9, and on both sides of a photodetecting surface 31, a photodetecting means provided with a light shielding surface 33 on which opening parts 32, 32 have been provided is placed. In the rear of the opening parts 32, 32, the end face of a light guide 34 is positioned, and the light from a light source 35 is irradiated on an object to be photographed. Since the opening part or the photoconductive surface 31 is in a conjugate position with a film 22, an image of the opening part 32 is formed at its own position at the time of focusing, therefore, the light does not reach the photoconductive surface 31. Accordingly, only at the time of non-focusing, an output is obtained from the photoconductive surface 31.
JP57004117A 1982-01-14 1982-01-14 Expired - Lifetime JPH0225487B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57004117A JPH0225487B2 (en) 1982-01-14 1982-01-14

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP57004117A JPH0225487B2 (en) 1982-01-14 1982-01-14
US06/442,087 US4538062A (en) 1981-11-19 1982-11-16 Focusing detecting device with coaxial source and detector
EP82306169A EP0080340B1 (en) 1981-11-19 1982-11-19 A device for detecting the focused state of an optical system
DE8282306169T DE3272935D1 (en) 1981-11-19 1982-11-19 A device for detecting the focused state of an optical system
AT82306169T AT21778T (en) 1981-11-19 1982-11-19 DEVICE FOR DETECTING THE FOCUSING STATE OF AN OPTICAL SYSTEM.

Publications (2)

Publication Number Publication Date
JPS58121008A true JPS58121008A (en) 1983-07-19
JPH0225487B2 JPH0225487B2 (en) 1990-06-04

Family

ID=11575836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57004117A Expired - Lifetime JPH0225487B2 (en) 1982-01-14 1982-01-14

Country Status (1)

Country Link
JP (1) JPH0225487B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62139225A (en) * 1985-12-12 1987-06-22 Omron Tateisi Electronics Co Photoelectric switch
JPS62237629A (en) * 1986-04-09 1987-10-17 Omron Tateisi Electronics Co Photoelectric switch
JPS62262328A (en) * 1986-05-06 1987-11-14 Omron Tateisi Electronics Co Optoelectric switch
WO1999061948A1 (en) * 1998-05-25 1999-12-02 Matsushita Electric Industrial Co., Ltd. Range finder and camera
WO2017217498A1 (en) * 2016-06-16 2017-12-21 国立大学法人東京農工大学 Endoscope expansion device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04106227U (en) * 1991-02-22 1992-09-14

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099561A (en) * 1973-12-28 1975-08-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099561A (en) * 1973-12-28 1975-08-07

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62139225A (en) * 1985-12-12 1987-06-22 Omron Tateisi Electronics Co Photoelectric switch
JPS62237629A (en) * 1986-04-09 1987-10-17 Omron Tateisi Electronics Co Photoelectric switch
JPS62262328A (en) * 1986-05-06 1987-11-14 Omron Tateisi Electronics Co Optoelectric switch
WO1999061948A1 (en) * 1998-05-25 1999-12-02 Matsushita Electric Industrial Co., Ltd. Range finder and camera
KR100382439B1 (en) * 1998-05-25 2003-05-09 마쯔시다덴기산교 가부시키가이샤 Range finder and camera
US6587183B1 (en) 1998-05-25 2003-07-01 Matsushita Electric Industrial Co., Ltd. Range finder and camera
US6704099B2 (en) 1998-05-25 2004-03-09 Matsushita Electric Industrial Co., Ltd. Range finder device and camera
US6734951B2 (en) 1998-05-25 2004-05-11 Matsushita Electric Industrial Co., Ltd. Range finder device and camera
US6897946B2 (en) 1998-05-25 2005-05-24 Matsushita Electric Industrial Co., Ltd. Ranger finder device and camera
WO2017217498A1 (en) * 2016-06-16 2017-12-21 国立大学法人東京農工大学 Endoscope expansion device

Also Published As

Publication number Publication date
JPH0225487B2 (en) 1990-06-04

Similar Documents

Publication Publication Date Title
JPS63208026A (en) Device for correcting focus point at macrophotographing of autofocusing camera
JPS58121008A (en) Focusing detecting device and focusing setting device
US4172643A (en) Exposure measuring apparatus for photographic cameras
JPS57154206A (en) Focusing device
JPH02181109A (en) Automatic focusing device for camera
JPS5887514A (en) Focus detecting device and focused position setting device
JPS6057826A (en) Close-up photographic device of automatic focusing camera
JPS63291042A (en) Projection pattern for detecting focus
JPS58121013A (en) Focus detecting device for endoscope and focus setting device for endoscope
JPS58121012A (en) Focus detecting device for endoscope and focus setting device for endoscope
JPS59152423A (en) Photometric device of single-lens reflex camera
JPS5887513A (en) Focus detecting device and focused position setting device
JPS636532A (en) Automatic focusing camera capable of proximity photographing
JPS58211108A (en) Focusing detector and setter for endoscope
JPS58209708A (en) Focusing and photographing device for endoscope
JPS5887515A (en) Focus detecting device and focused position setting device
JPS54107338A (en) Focusing device of single-lens reflex camera
JPS62188901A (en) Optical position detector
JPS5570186A (en) Television camera
JPS5936232A (en) Photometric device of single-lens reflex camera
JPS612137A (en) Photometric device
JPS61236515A (en) Focusing device
JPS6240410A (en) Optical system having focus detecting device
JPS6073609A (en) Automatic focus detector
JPS59129838A (en) Automatic focus photographing device