JPS6344205B2 - - Google Patents

Info

Publication number
JPS6344205B2
JPS6344205B2 JP55113063A JP11306380A JPS6344205B2 JP S6344205 B2 JPS6344205 B2 JP S6344205B2 JP 55113063 A JP55113063 A JP 55113063A JP 11306380 A JP11306380 A JP 11306380A JP S6344205 B2 JPS6344205 B2 JP S6344205B2
Authority
JP
Japan
Prior art keywords
focus
circuit
contrast
output
signal
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
JP55113063A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5737336A (en
Inventor
Harumi Aoki
Masahiro Kawasaki
Koji Suzuki
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
Priority to JP11306380A priority Critical patent/JPS5737336A/ja
Priority to DE3131053A priority patent/DE3131053C2/de
Priority to US06/290,415 priority patent/US4410258A/en
Priority to GB8124181A priority patent/GB2082010B/en
Publication of JPS5737336A publication Critical patent/JPS5737336A/ja
Priority to GB08412315A priority patent/GB2141892B/en
Publication of JPS6344205B2 publication Critical patent/JPS6344205B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing
    • 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
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/005—Blur detection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP11306380A 1980-08-07 1980-08-19 Automatic focus detector for camera Granted JPS5737336A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP11306380A JPS5737336A (en) 1980-08-19 1980-08-19 Automatic focus detector for camera
DE3131053A DE3131053C2 (de) 1980-08-07 1981-08-05 Automatische Fokussierungsermittlungseinrichtung für eine Kamera
US06/290,415 US4410258A (en) 1980-08-07 1981-08-06 Automatic focus detecting device for camera
GB8124181A GB2082010B (en) 1980-08-07 1981-08-07 Automatic focus detecting devices for cameras
GB08412315A GB2141892B (en) 1980-08-07 1984-05-14 Automatic focus detecting devices for cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11306380A JPS5737336A (en) 1980-08-19 1980-08-19 Automatic focus detector for camera

Publications (2)

Publication Number Publication Date
JPS5737336A JPS5737336A (en) 1982-03-01
JPS6344205B2 true JPS6344205B2 (enrdf_load_stackoverflow) 1988-09-02

Family

ID=14602552

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11306380A Granted JPS5737336A (en) 1980-08-07 1980-08-19 Automatic focus detector for camera

Country Status (1)

Country Link
JP (1) JPS5737336A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629896B2 (ja) * 1984-08-31 1994-04-20 キヤノン株式会社 焦点検出装置
JPH0423575Y2 (enrdf_load_stackoverflow) * 1985-07-10 1992-06-02
US7345706B2 (en) 2002-08-23 2008-03-18 Fuji Photo Optical Co., Ltd. Auto focus system
PL2725616T3 (pl) * 2011-06-24 2018-01-31 Boly Media Comm Shenzhen Co Urządzenie światłoczułe o wieloscenowej przedmiotowej głębi ostrości, jego układ, sposób rozszerzania głębi sceny i system obrazowania optycznego
US10554874B2 (en) 2014-07-22 2020-02-04 Sony Semiconductor Solutions Corporation Solid-state imaging device and electronic equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958826A (enrdf_load_stackoverflow) * 1972-10-04 1974-06-07
JPS5154432A (en) * 1974-11-07 1976-05-13 Asahi Optical Co Ltd Shotenkenshutsusochi
JPS5518652A (en) * 1978-07-28 1980-02-08 Canon Inc Imaging state detecting system of image

Also Published As

Publication number Publication date
JPS5737336A (en) 1982-03-01

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