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JPS51144652A - Built-in multiplying factor altering optical system - Google Patents

Built-in multiplying factor altering optical system

Info

Publication number
JPS51144652A
JPS51144652A JP6876375A JP6876375A JPS51144652A JP S51144652 A JPS51144652 A JP S51144652A JP 6876375 A JP6876375 A JP 6876375A JP 6876375 A JP6876375 A JP 6876375A JP S51144652 A JPS51144652 A JP S51144652A
Authority
JP
Japan
Prior art keywords
multiplying factor
built
optical system
factor altering
altering optical
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
JP6876375A
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 JP6876375A priority Critical patent/JPS51144652A/en
Priority to US05/692,518 priority patent/US4240697A/en
Publication of JPS51144652A publication Critical patent/JPS51144652A/en
Pending legal-status Critical Current

Links

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  • Lenses (AREA)

Abstract

PURPOSE: Setting meniscus-shaped air lens on the image surface side of a multiplying factor altering lens group can keep good image formation performance by the entire lens system when an interchangeable lens group for magnification extending is inserted.
COPYRIGHT: (C)1976,JPO&Japio
JP6876375A 1975-06-05 1975-06-06 Built-in multiplying factor altering optical system Pending JPS51144652A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6876375A JPS51144652A (en) 1975-06-06 1975-06-06 Built-in multiplying factor altering optical system
US05/692,518 US4240697A (en) 1975-06-05 1976-06-03 Lens system having selectively shiftable focal length

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6876375A JPS51144652A (en) 1975-06-06 1975-06-06 Built-in multiplying factor altering optical system

Publications (1)

Publication Number Publication Date
JPS51144652A true JPS51144652A (en) 1976-12-11

Family

ID=13383092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6876375A Pending JPS51144652A (en) 1975-06-05 1975-06-06 Built-in multiplying factor altering optical system

Country Status (1)

Country Link
JP (1) JPS51144652A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008039918A (en) * 2006-08-02 2008-02-21 Olympus Corp Microscopic optical system and microscopic observation method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4881545A (en) * 1972-02-01 1973-10-31

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4881545A (en) * 1972-02-01 1973-10-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008039918A (en) * 2006-08-02 2008-02-21 Olympus Corp Microscopic optical system and microscopic observation method

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