JPS546533A - Detecting method of focusing positions by chromatic aberrations of lens - Google Patents

Detecting method of focusing positions by chromatic aberrations of lens

Info

Publication number
JPS546533A
JPS546533A JP7162377A JP7162377A JPS546533A JP S546533 A JPS546533 A JP S546533A JP 7162377 A JP7162377 A JP 7162377A JP 7162377 A JP7162377 A JP 7162377A JP S546533 A JPS546533 A JP S546533A
Authority
JP
Japan
Prior art keywords
lens
focusing positions
detecting method
chromatic aberrations
objective lens
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.)
Granted
Application number
JP7162377A
Other languages
Japanese (ja)
Other versions
JPS5916246B2 (en
Inventor
Kunio Shimoyama
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP7162377A priority Critical patent/JPS5916246B2/en
Publication of JPS546533A publication Critical patent/JPS546533A/en
Publication of JPS5916246B2 publication Critical patent/JPS5916246B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To determine focusing positions readily and accurately by letting the luminous fluxes of mutually different wavelengths having passed through an objective lens enter photo detectors disposed in nutaully conjugate positions and detecting the coincidence point between the extreme values of the outputs of both photo detectors when the objective lens is focused.
COPYRIGHT: (C)1979,JPO&Japio
JP7162377A 1977-06-17 1977-06-17 Focus position detection method using lens chromatic aberration Expired JPS5916246B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7162377A JPS5916246B2 (en) 1977-06-17 1977-06-17 Focus position detection method using lens chromatic aberration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7162377A JPS5916246B2 (en) 1977-06-17 1977-06-17 Focus position detection method using lens chromatic aberration

Publications (2)

Publication Number Publication Date
JPS546533A true JPS546533A (en) 1979-01-18
JPS5916246B2 JPS5916246B2 (en) 1984-04-14

Family

ID=13465956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7162377A Expired JPS5916246B2 (en) 1977-06-17 1977-06-17 Focus position detection method using lens chromatic aberration

Country Status (1)

Country Link
JP (1) JPS5916246B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62115408A (en) * 1985-11-15 1987-05-27 Tamuron:Kk Focusing detector for camera having solid state image pickup element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62115408A (en) * 1985-11-15 1987-05-27 Tamuron:Kk Focusing detector for camera having solid state image pickup element

Also Published As

Publication number Publication date
JPS5916246B2 (en) 1984-04-14

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