DE3625267C2 - - Google Patents

Info

Publication number
DE3625267C2
DE3625267C2 DE3625267A DE3625267A DE3625267C2 DE 3625267 C2 DE3625267 C2 DE 3625267C2 DE 3625267 A DE3625267 A DE 3625267A DE 3625267 A DE3625267 A DE 3625267A DE 3625267 C2 DE3625267 C2 DE 3625267C2
Authority
DE
Germany
Prior art keywords
condenser lens
sensor
optical
light
distribution
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.)
Expired
Application number
DE3625267A
Other languages
German (de)
English (en)
Other versions
DE3625267A1 (de
Inventor
Osamu Tokio/Tokyo Jp Shindo
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo 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 Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of DE3625267A1 publication Critical patent/DE3625267A1/de
Application granted granted Critical
Publication of DE3625267C2 publication Critical patent/DE3625267C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane
    • G02B7/346—Systems for automatic generation of focusing signals using different areas in a pupil plane using horizontal and vertical areas in the pupil plane, i.e. wide area autofocusing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
DE19863625267 1985-07-26 1986-07-25 Optisches system fuer die verwendung in einem brennpunkt-erfassungsapparat Granted DE3625267A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60166580A JPH0812321B2 (ja) 1985-07-26 1985-07-26 焦点検出装置の光学系

Publications (2)

Publication Number Publication Date
DE3625267A1 DE3625267A1 (de) 1987-02-05
DE3625267C2 true DE3625267C2 (enExample) 1989-09-21

Family

ID=15833906

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863625267 Granted DE3625267A1 (de) 1985-07-26 1986-07-25 Optisches system fuer die verwendung in einem brennpunkt-erfassungsapparat

Country Status (3)

Country Link
US (1) US4716431A (enExample)
JP (1) JPH0812321B2 (enExample)
DE (1) DE3625267A1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2630771B2 (ja) * 1987-03-26 1997-07-16 旭光学工業株式会社 焦点検出光学系
US4890133A (en) * 1987-03-26 1989-12-26 Asahi Kogaku Kogyo K.K. Autofocus camera
JP2543077B2 (ja) * 1987-05-07 1996-10-16 オリンパス光学工業株式会社 焦点検出用光学系
JP2770301B2 (ja) * 1987-05-08 1998-07-02 ミノルタ株式会社 焦点検出用光学装置
US4939357A (en) * 1987-11-20 1990-07-03 Asahi Kogaku Kogyo K.K. Optical system for a focal point detecting device
US4902126A (en) * 1988-02-09 1990-02-20 Fibertek, Inc. Wire obstacle avoidance system for helicopters
JP3108697B2 (ja) * 1991-04-25 2000-11-13 旭光学工業株式会社 焦点検出装置
JP2001124982A (ja) * 1999-10-25 2001-05-11 Asahi Optical Co Ltd 多点焦点検出装置
JP2004198701A (ja) * 2002-12-18 2004-07-15 Olympus Corp 焦点検出光学系及びそれを備えたカメラ
JP2006003803A (ja) * 2004-06-21 2006-01-05 Olympus Corp 合焦情報取得装置及び合焦情報取得方法
JP5016373B2 (ja) * 2007-05-15 2012-09-05 ペンタックスリコーイメージング株式会社 焦点検出装置の光学系

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011054A1 (de) * 1979-03-26 1980-10-09 Honeywell Inc Optisches system
JPS6032012A (ja) * 1983-08-01 1985-02-19 Minolta Camera Co Ltd カメラの焦点検出装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156909A (ja) * 1982-03-13 1983-09-19 Canon Inc 合焦状態検出装置
JPS5962809A (ja) * 1982-10-04 1984-04-10 Olympus Optical Co Ltd 焦点検出装置
US4573784A (en) * 1982-12-11 1986-03-04 Canon Kabushiki Kaisha Focus detecting apparatus
JPH067219B2 (ja) * 1983-08-16 1994-01-26 ミノルタカメラ株式会社 カメラの焦点検出装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011054A1 (de) * 1979-03-26 1980-10-09 Honeywell Inc Optisches system
JPS6032012A (ja) * 1983-08-01 1985-02-19 Minolta Camera Co Ltd カメラの焦点検出装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Malacara, D. Optical Shop Testing, John Wiley-Verlag New York 1978, S. 479 *

Also Published As

Publication number Publication date
JPH0812321B2 (ja) 1996-02-07
DE3625267A1 (de) 1987-02-05
US4716431A (en) 1987-12-29
JPS6225715A (ja) 1987-02-03

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PENTAX CORP., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee