JPS5232345A - Objective lens - Google Patents

Objective lens

Info

Publication number
JPS5232345A
JPS5232345A JP10863475A JP10863475A JPS5232345A JP S5232345 A JPS5232345 A JP S5232345A JP 10863475 A JP10863475 A JP 10863475A JP 10863475 A JP10863475 A JP 10863475A JP S5232345 A JPS5232345 A JP S5232345A
Authority
JP
Japan
Prior art keywords
objective lens
thousandth
focus
employing
convex
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
JP10863475A
Other languages
Japanese (ja)
Inventor
Eiichi Takano
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP10863475A priority Critical patent/JPS5232345A/en
Publication of JPS5232345A publication Critical patent/JPS5232345A/en
Pending legal-status Critical Current

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  • Lenses (AREA)

Abstract

PURPOSE: To reduce the chromatic aberration less than ten-thousandth of the focus by employing an objective lens composed of a convex and a concave lenses.
COPYRIGHT: (C)1977,JPO&Japio
JP10863475A 1975-09-08 1975-09-08 Objective lens Pending JPS5232345A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10863475A JPS5232345A (en) 1975-09-08 1975-09-08 Objective lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10863475A JPS5232345A (en) 1975-09-08 1975-09-08 Objective lens

Publications (1)

Publication Number Publication Date
JPS5232345A true JPS5232345A (en) 1977-03-11

Family

ID=14489758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10863475A Pending JPS5232345A (en) 1975-09-08 1975-09-08 Objective lens

Country Status (1)

Country Link
JP (1) JPS5232345A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5643617A (en) * 1979-09-18 1981-04-22 Suriibiic:Kk Ultrashort focus achromat objective lens
JPS63305315A (en) * 1987-06-05 1988-12-13 Mitsubishi Electric Corp Apochromatic lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5643617A (en) * 1979-09-18 1981-04-22 Suriibiic:Kk Ultrashort focus achromat objective lens
JPS63305315A (en) * 1987-06-05 1988-12-13 Mitsubishi Electric Corp Apochromatic lens

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