JPS5336226A - Fore-placed diaphragm lens - Google Patents

Fore-placed diaphragm lens

Info

Publication number
JPS5336226A
JPS5336226A JP11102076A JP11102076A JPS5336226A JP S5336226 A JPS5336226 A JP S5336226A JP 11102076 A JP11102076 A JP 11102076A JP 11102076 A JP11102076 A JP 11102076A JP S5336226 A JPS5336226 A JP S5336226A
Authority
JP
Japan
Prior art keywords
fore
diaphragm lens
placed diaphragm
lens
biconcave
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
JP11102076A
Other languages
Japanese (ja)
Other versions
JPS6053847B2 (en
Inventor
Ryoichi Doi
Yutaka Sakai
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.)
Fujinon Corp
Original Assignee
Fuji Photo 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP51111020A priority Critical patent/JPS6053847B2/en
Publication of JPS5336226A publication Critical patent/JPS5336226A/en
Publication of JPS6053847B2 publication Critical patent/JPS6053847B2/en
Expired legal-status Critical Current

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  • Lenses (AREA)

Abstract

PURPOSE: To facilitate the correction of astigmatism, coma aberration, etc. by disposing respective lenses of biconvex, biconcave and convex meniscus so as to satisfy specific conditions thereby constituting a fore-placed diaphragm lens.
COPYRIGHT: (C)1978,JPO&Japio
JP51111020A 1976-09-16 1976-09-16 front aperture lens Expired JPS6053847B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51111020A JPS6053847B2 (en) 1976-09-16 1976-09-16 front aperture lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51111020A JPS6053847B2 (en) 1976-09-16 1976-09-16 front aperture lens

Publications (2)

Publication Number Publication Date
JPS5336226A true JPS5336226A (en) 1978-04-04
JPS6053847B2 JPS6053847B2 (en) 1985-11-27

Family

ID=14550348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51111020A Expired JPS6053847B2 (en) 1976-09-16 1976-09-16 front aperture lens

Country Status (1)

Country Link
JP (1) JPS6053847B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933416A (en) * 1982-08-20 1984-02-23 Olympus Optical Co Ltd Adapter lens for photographing
JPS59228223A (en) * 1983-06-09 1984-12-21 Olympus Optical Co Ltd Adapter lens
US7035023B2 (en) 2003-04-24 2006-04-25 Canon Kabushiki Kaisha Lens system
US11467376B2 (en) 2020-05-05 2022-10-11 Largan Precision Co., Ltd. Image capturing optical lens assembly, imaging apparatus and electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB210705A (en) * 1923-07-27 1924-02-07 Alfred Taylor Improvements in photographic and projecting lenses
US3443863A (en) * 1967-01-23 1969-05-13 Eastman Kodak Co Triplet-type objective lens
JPS4421105Y1 (en) * 1965-09-02 1969-09-08
US3910685A (en) * 1974-11-05 1975-10-07 Eastman Kodak Co Three element objective lens with aspheres on rear surfaces of first and second elements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB210705A (en) * 1923-07-27 1924-02-07 Alfred Taylor Improvements in photographic and projecting lenses
JPS4421105Y1 (en) * 1965-09-02 1969-09-08
US3443863A (en) * 1967-01-23 1969-05-13 Eastman Kodak Co Triplet-type objective lens
US3910685A (en) * 1974-11-05 1975-10-07 Eastman Kodak Co Three element objective lens with aspheres on rear surfaces of first and second elements

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933416A (en) * 1982-08-20 1984-02-23 Olympus Optical Co Ltd Adapter lens for photographing
JPH0136921B2 (en) * 1982-08-20 1989-08-03 Olympus Optical Co
JPS59228223A (en) * 1983-06-09 1984-12-21 Olympus Optical Co Ltd Adapter lens
JPH0411005B2 (en) * 1983-06-09 1992-02-27
US7035023B2 (en) 2003-04-24 2006-04-25 Canon Kabushiki Kaisha Lens system
US11467376B2 (en) 2020-05-05 2022-10-11 Largan Precision Co., Ltd. Image capturing optical lens assembly, imaging apparatus and electronic device

Also Published As

Publication number Publication date
JPS6053847B2 (en) 1985-11-27

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