DE3750452D1 - Phasendifferenzdetektor. - Google Patents

Phasendifferenzdetektor.

Info

Publication number
DE3750452D1
DE3750452D1 DE3750452T DE3750452T DE3750452D1 DE 3750452 D1 DE3750452 D1 DE 3750452D1 DE 3750452 T DE3750452 T DE 3750452T DE 3750452 T DE3750452 T DE 3750452T DE 3750452 D1 DE3750452 D1 DE 3750452D1
Authority
DE
Germany
Prior art keywords
phase difference
difference detector
detector
phase
difference
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 - Lifetime
Application number
DE3750452T
Other languages
English (en)
Other versions
DE3750452T2 (de
Inventor
Takashi Fuji Photo Film Miida
Jin Fuji Photo Film C Murayama
Nozomu Fuji Photo Film C Ozaki
Masatoshi Fuji Photo Fil Tabei
Ryuji Fuji Photo Film Co Kondo
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.)
Fujifilm Corp
Original Assignee
Fuji Photo Film 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
Priority claimed from JP61212720A external-priority patent/JP2745125B2/ja
Priority claimed from JP61212721A external-priority patent/JP2534042B2/ja
Priority claimed from JP62145389A external-priority patent/JPH0810296B2/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of DE3750452D1 publication Critical patent/DE3750452D1/de
Application granted granted Critical
Publication of DE3750452T2 publication Critical patent/DE3750452T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Transforming Light Signals Into Electric Signals (AREA)
DE3750452T 1986-09-11 1987-09-11 Phasendifferenzdetektor. Expired - Lifetime DE3750452T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP61212720A JP2745125B2 (ja) 1986-09-11 1986-09-11 電荷蓄積デバイス
JP61212721A JP2534042B2 (ja) 1986-09-11 1986-09-11 電荷転送デバイス
JP22221186 1986-09-22
JP10449387 1987-04-30
JP62145389A JPH0810296B2 (ja) 1986-09-22 1987-06-12 位相差検出装置

Publications (2)

Publication Number Publication Date
DE3750452D1 true DE3750452D1 (de) 1994-10-06
DE3750452T2 DE3750452T2 (de) 1994-12-22

Family

ID=27526168

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3750452T Expired - Lifetime DE3750452T2 (de) 1986-09-11 1987-09-11 Phasendifferenzdetektor.

Country Status (3)

Country Link
US (1) US4849619A (de)
EP (1) EP0259887B1 (de)
DE (1) DE3750452T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01229211A (ja) * 1988-03-10 1989-09-12 Fuji Photo Film Co Ltd 位相差検出装置
JPH01229212A (ja) * 1988-03-10 1989-09-12 Fuji Photo Film Co Ltd 位相差検出装置
US4959726A (en) * 1988-03-10 1990-09-25 Fuji Photo Film Co., Ltd. Automatic focusing adjusting device
US5033020A (en) * 1989-02-08 1991-07-16 Grumman Aerospace Corporation Optically controlled information processing system
JP2614137B2 (ja) * 1990-05-30 1997-05-28 富士写真フイルム株式会社 位相差検出装置
US6867654B2 (en) * 2003-06-20 2005-03-15 Arshad Suhail Farooqui Additive phase detector and its use in high speed phase-locked loops
KR101452636B1 (ko) * 2013-06-03 2014-10-22 엘에스산전 주식회사 인버터 시스템 및 이의 전력 케이블 상태 검출 방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967056A (en) * 1973-02-26 1976-06-29 Minolta Camera Kabushiki Kaisha Automatic focusing apparatus
JPS5385454A (en) * 1977-01-06 1978-07-27 Canon Inc Distance detecting method
US4559446A (en) * 1982-02-18 1985-12-17 Canon Kabushiki Kaisha Focus detecting system using light from an imaging optical system for focus detection
JPS5915208A (ja) * 1982-06-17 1984-01-26 Olympus Optical Co Ltd 合焦検出装置
JPS5940610A (ja) * 1982-08-30 1984-03-06 Canon Inc 合焦検出装置
JPS59154879A (ja) * 1983-02-24 1984-09-03 Asahi Optical Co Ltd 光電変換素子駆動回路
JPS59208513A (ja) * 1983-05-12 1984-11-26 Canon Inc 焦点検出装置
US4621292A (en) * 1983-10-19 1986-11-04 Matsushita Electric Industrial Co., Ltd. Automatic focusing device for a video camera
EP0265080B1 (de) * 1986-09-25 1991-11-27 Nec Corporation Einrichtung zur Ermittlung der Bit-Phasendifferenz

Also Published As

Publication number Publication date
EP0259887A3 (en) 1989-01-25
US4849619A (en) 1989-07-18
EP0259887A2 (de) 1988-03-16
EP0259887B1 (de) 1994-08-31
DE3750452T2 (de) 1994-12-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

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