JPS5292533A - Objective lens with medium magnification - Google Patents

Objective lens with medium magnification

Info

Publication number
JPS5292533A
JPS5292533A JP834476A JP834476A JPS5292533A JP S5292533 A JPS5292533 A JP S5292533A JP 834476 A JP834476 A JP 834476A JP 834476 A JP834476 A JP 834476A JP S5292533 A JPS5292533 A JP S5292533A
Authority
JP
Japan
Prior art keywords
objective lens
medium magnification
magnification
medium
thrickness
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
JP834476A
Other languages
Japanese (ja)
Other versions
JPS5752566B2 (en
Inventor
Toshiaki Koizumi
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 JP834476A priority Critical patent/JPS5292533A/en
Priority to US05/763,082 priority patent/US4139266A/en
Priority to DE2703823A priority patent/DE2703823C3/en
Publication of JPS5292533A publication Critical patent/JPS5292533A/en
Publication of JPS5752566B2 publication Critical patent/JPS5752566B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To increase the operating distnace, to make the image flat and to improve the resolution by satisfying various conditions of the focal distance, thrickness and the radius of curvature and by using four lenses of any desired shape as the lens system.
COPYRIGHT: (C)1977,JPO&Japio
JP834476A 1976-01-30 1976-01-30 Objective lens with medium magnification Granted JPS5292533A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP834476A JPS5292533A (en) 1976-01-30 1976-01-30 Objective lens with medium magnification
US05/763,082 US4139266A (en) 1976-01-30 1977-01-27 Medium magnification objective for video disks
DE2703823A DE2703823C3 (en) 1976-01-30 1977-01-31 Medium magnification reproduction lens for optical disks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP834476A JPS5292533A (en) 1976-01-30 1976-01-30 Objective lens with medium magnification

Publications (2)

Publication Number Publication Date
JPS5292533A true JPS5292533A (en) 1977-08-04
JPS5752566B2 JPS5752566B2 (en) 1982-11-08

Family

ID=11690586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP834476A Granted JPS5292533A (en) 1976-01-30 1976-01-30 Objective lens with medium magnification

Country Status (1)

Country Link
JP (1) JPS5292533A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11953654B2 (en) 2016-02-02 2024-04-09 Largan Precision Co., Ltd. Image capturing lens system, image capturing apparatus and electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11953654B2 (en) 2016-02-02 2024-04-09 Largan Precision Co., Ltd. Image capturing lens system, image capturing apparatus and electronic device

Also Published As

Publication number Publication date
JPS5752566B2 (en) 1982-11-08

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