CA1332637C - Dispositif de mise au point - Google Patents

Dispositif de mise au point

Info

Publication number
CA1332637C
CA1332637C CA000592485A CA592485A CA1332637C CA 1332637 C CA1332637 C CA 1332637C CA 000592485 A CA000592485 A CA 000592485A CA 592485 A CA592485 A CA 592485A CA 1332637 C CA1332637 C CA 1332637C
Authority
CA
Canada
Prior art keywords
lens
signal
predetermined frequency
frequency component
change
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
CA000592485A
Other languages
English (en)
Inventor
Koji Iwamoto
Kenichi Hamada
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to CA000616749A priority Critical patent/CA1339786C/fr
Application granted granted Critical
Publication of CA1332637C publication Critical patent/CA1332637C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Automatic Focus Adjustment (AREA)
CA000592485A 1988-03-04 1989-03-01 Dispositif de mise au point Expired - Lifetime CA1332637C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000616749A CA1339786C (fr) 1988-03-04 1993-09-30 Dispositif de mise au point

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63051294A JP2759955B2 (ja) 1988-03-04 1988-03-04 焦点制御装置
JP051294/88 1988-03-04

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA000616749A Division CA1339786C (fr) 1988-03-04 1993-09-30 Dispositif de mise au point

Publications (1)

Publication Number Publication Date
CA1332637C true CA1332637C (fr) 1994-10-18

Family

ID=12882900

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000592485A Expired - Lifetime CA1332637C (fr) 1988-03-04 1989-03-01 Dispositif de mise au point

Country Status (3)

Country Link
JP (1) JP2759955B2 (fr)
KR (1) KR0185167B1 (fr)
CA (1) CA1332637C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6032884B2 (ja) * 2011-11-14 2016-11-30 キヤノン株式会社 撮像装置、撮像装置の制御方法、プログラム
JP6341250B2 (ja) * 2016-10-06 2018-06-13 株式会社ニコン 交換レンズおよびカメラ
CN115242968B (zh) * 2022-06-10 2024-08-02 浙江大华技术股份有限公司 一种摄像设备的聚焦方法、装置和计算机可读存储介质

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH087323B2 (ja) * 1986-03-10 1996-01-29 キヤノン株式会社 焦点検出装置

Also Published As

Publication number Publication date
JP2759955B2 (ja) 1998-05-28
JPH01226281A (ja) 1989-09-08
KR0185167B1 (ko) 1999-05-01
KR890015062A (ko) 1989-10-28

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Legal Events

Date Code Title Description
MKEX Expiry