JPS5280026A - Focus detection means - Google Patents

Focus detection means

Info

Publication number
JPS5280026A
JPS5280026A JP15747975A JP15747975A JPS5280026A JP S5280026 A JPS5280026 A JP S5280026A JP 15747975 A JP15747975 A JP 15747975A JP 15747975 A JP15747975 A JP 15747975A JP S5280026 A JPS5280026 A JP S5280026A
Authority
JP
Japan
Prior art keywords
detection means
focus detection
oscillating
swinging
camera
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
JP15747975A
Other languages
Japanese (ja)
Inventor
Toshihiro 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 Holdings 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
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP15747975A priority Critical patent/JPS5280026A/en
Priority to DE19762659009 priority patent/DE2659009A1/en
Publication of JPS5280026A publication Critical patent/JPS5280026A/en
Pending legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)

Abstract

PURPOSE: To enable a correct focusing on a dark object and a moving object in the focus detecting means for camera, etc. by oscillating a refractive optical element with a definite periodic time, and by detecting the swinging of an image.
COPYRIGHT: (C)1977,JPO&Japio
JP15747975A 1975-12-26 1975-12-26 Focus detection means Pending JPS5280026A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP15747975A JPS5280026A (en) 1975-12-26 1975-12-26 Focus detection means
DE19762659009 DE2659009A1 (en) 1975-12-26 1976-12-27 Automatic focussing camera coping with weak light - uses secondary image periodically shifted to generate AC detection signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15747975A JPS5280026A (en) 1975-12-26 1975-12-26 Focus detection means

Publications (1)

Publication Number Publication Date
JPS5280026A true JPS5280026A (en) 1977-07-05

Family

ID=15650566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15747975A Pending JPS5280026A (en) 1975-12-26 1975-12-26 Focus detection means

Country Status (1)

Country Link
JP (1) JPS5280026A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688121A (en) * 1979-11-30 1981-07-17 Honeywell Inc Lowwcontrasttbias automatic focusing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5688121A (en) * 1979-11-30 1981-07-17 Honeywell Inc Lowwcontrasttbias automatic focusing device

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