JPS5248316A - Wide-angle lens of retrofocus type - Google Patents

Wide-angle lens of retrofocus type

Info

Publication number
JPS5248316A
JPS5248316A JP50123273A JP12327375A JPS5248316A JP S5248316 A JPS5248316 A JP S5248316A JP 50123273 A JP50123273 A JP 50123273A JP 12327375 A JP12327375 A JP 12327375A JP S5248316 A JPS5248316 A JP S5248316A
Authority
JP
Japan
Prior art keywords
wide
retrofocus type
angle lens
angle
retrofocus
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
JP50123273A
Other languages
Japanese (ja)
Other versions
JPS5820008B2 (en
Inventor
Yoshiji Ikeda
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 JP50123273A priority Critical patent/JPS5820008B2/en
Priority to US05/732,182 priority patent/US4145117A/en
Priority to DE2646660A priority patent/DE2646660C3/en
Publication of JPS5248316A publication Critical patent/JPS5248316A/en
Publication of JPS5820008B2 publication Critical patent/JPS5820008B2/en
Expired legal-status Critical Current

Links

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  • Lenses (AREA)

Abstract

PURPOSE: To provide a wide-angle of retrofocus type, which is composed of seven groups of seven lenses satisfying preset conditions so as to compensate the aberration satisfactorily and to accomplish the photography from infinity to a short range in a balanced manner.
COPYRIGHT: (C)1977,JPO&Japio
JP50123273A 1975-10-15 1975-10-15 Retrofocus Gatakouka Cleanse Expired JPS5820008B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP50123273A JPS5820008B2 (en) 1975-10-15 1975-10-15 Retrofocus Gatakouka Cleanse
US05/732,182 US4145117A (en) 1975-10-15 1976-10-13 Retrofocus type wide angle lens system
DE2646660A DE2646660C3 (en) 1975-10-15 1976-10-15 Inverted telephoto type wide angle lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50123273A JPS5820008B2 (en) 1975-10-15 1975-10-15 Retrofocus Gatakouka Cleanse

Publications (2)

Publication Number Publication Date
JPS5248316A true JPS5248316A (en) 1977-04-18
JPS5820008B2 JPS5820008B2 (en) 1983-04-21

Family

ID=14856470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50123273A Expired JPS5820008B2 (en) 1975-10-15 1975-10-15 Retrofocus Gatakouka Cleanse

Country Status (1)

Country Link
JP (1) JPS5820008B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6389525U (en) * 1986-11-28 1988-06-10
JPH0298104U (en) * 1989-01-20 1990-08-06

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491281A (en) * 1972-04-17 1974-01-08
JPS5028830A (en) * 1973-07-14 1975-03-24

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491281A (en) * 1972-04-17 1974-01-08
JPS5028830A (en) * 1973-07-14 1975-03-24

Also Published As

Publication number Publication date
JPS5820008B2 (en) 1983-04-21

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