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JPS5540447A - Image correcting method in zoom lens - Google Patents

Image correcting method in zoom lens

Info

Publication number
JPS5540447A
JPS5540447A JP11307578A JP11307578A JPS5540447A JP S5540447 A JPS5540447 A JP S5540447A JP 11307578 A JP11307578 A JP 11307578A JP 11307578 A JP11307578 A JP 11307578A JP S5540447 A JPS5540447 A JP S5540447A
Authority
JP
Japan
Prior art keywords
lens
focus
zoom
moving
zoom 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.)
Pending
Application number
JP11307578A
Other languages
Japanese (ja)
Inventor
Yoshisada Hayamizu
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 JP11307578A priority Critical patent/JPS5540447A/en
Publication of JPS5540447A publication Critical patent/JPS5540447A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To correct the out-ot-focus produced owing to movement of a variator lens through automatic movement of a focusing lens without using any non-linear cam by providing a focus detector within zoom lens mechanism.
CONSTITUTION: When the focal length of the zoom system is changed by moving a variable lens 12, the imaging position deviates from a film plane 16. This image deviation is detected by a focus detecting part 18 and the image is correctly formed on the film plane 16 by moving a focus lens 13 by a focus lens moving mechanism 20 by way of a focus lens control circuit 19. Hence, according to this method, the zoom mechanism part does not require the mechanism for cooperating the variator lens and compensator lens using intricate non-linear can, etc. By automatically moving the focus lens, the out-of-focus of the zoom may be corrected.
COPYRIGHT: (C)1980,JPO&Japio
JP11307578A 1978-09-14 1978-09-14 Image correcting method in zoom lens Pending JPS5540447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11307578A JPS5540447A (en) 1978-09-14 1978-09-14 Image correcting method in zoom lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11307578A JPS5540447A (en) 1978-09-14 1978-09-14 Image correcting method in zoom lens

Publications (1)

Publication Number Publication Date
JPS5540447A true JPS5540447A (en) 1980-03-21

Family

ID=14602839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11307578A Pending JPS5540447A (en) 1978-09-14 1978-09-14 Image correcting method in zoom lens

Country Status (1)

Country Link
JP (1) JPS5540447A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162727A (en) * 1980-05-20 1981-12-14 Minolta Camera Co Ltd Focusing device of zoom lens
JPS57118203A (en) * 1981-01-16 1982-07-23 Hitachi Denshi Ltd Automatic focusing variable magnification optical system
JPS57133412A (en) * 1981-02-13 1982-08-18 Olympus Optical Co Ltd Zoom lens barrel for automatic focusing
JPS5963207A (en) * 1982-10-04 1984-04-10 Sumitomo Rubber Ind Ltd Radial tire for heavy duty vehicle
JPS5984608A (en) * 1982-11-04 1984-05-16 Sumitomo Rubber Ind Ltd Radial tire
JPS5989206A (en) * 1982-11-11 1984-05-23 Sumitomo Rubber Ind Ltd Radial tire for heavy-duty vehicle
JPH021692A (en) * 1988-10-07 1990-01-05 Hitachi Ltd Auto-focus device for video camera
JPH02169309A (en) * 1988-12-22 1990-06-29 Bridgestone Corp Radial tire for construction vehicle
JPH0541828A (en) * 1991-09-27 1993-02-19 Hitachi Ltd Focus device for video camera
JPH0775000A (en) * 1994-08-22 1995-03-17 Hitachi Ltd Focusing device for video camera
JP2012017074A (en) * 2010-07-09 2012-01-26 Yokohama Rubber Co Ltd:The Pneumatic radial tire

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162727A (en) * 1980-05-20 1981-12-14 Minolta Camera Co Ltd Focusing device of zoom lens
JPH0119121B2 (en) * 1980-05-20 1989-04-10 Minolta Camera Kk
JPS57118203A (en) * 1981-01-16 1982-07-23 Hitachi Denshi Ltd Automatic focusing variable magnification optical system
JPS57133412A (en) * 1981-02-13 1982-08-18 Olympus Optical Co Ltd Zoom lens barrel for automatic focusing
JPS5963207A (en) * 1982-10-04 1984-04-10 Sumitomo Rubber Ind Ltd Radial tire for heavy duty vehicle
JPS5984608A (en) * 1982-11-04 1984-05-16 Sumitomo Rubber Ind Ltd Radial tire
JPS5989206A (en) * 1982-11-11 1984-05-23 Sumitomo Rubber Ind Ltd Radial tire for heavy-duty vehicle
JPH021692A (en) * 1988-10-07 1990-01-05 Hitachi Ltd Auto-focus device for video camera
JPH02169309A (en) * 1988-12-22 1990-06-29 Bridgestone Corp Radial tire for construction vehicle
JPH0541828A (en) * 1991-09-27 1993-02-19 Hitachi Ltd Focus device for video camera
JPH0775000A (en) * 1994-08-22 1995-03-17 Hitachi Ltd Focusing device for video camera
JP2012017074A (en) * 2010-07-09 2012-01-26 Yokohama Rubber Co Ltd:The Pneumatic radial tire

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