GB1484322A - Wide angle lenses - Google Patents

Wide angle lenses

Info

Publication number
GB1484322A
GB1484322A GB3680074A GB3680074A GB1484322A GB 1484322 A GB1484322 A GB 1484322A GB 3680074 A GB3680074 A GB 3680074A GB 3680074 A GB3680074 A GB 3680074A GB 1484322 A GB1484322 A GB 1484322A
Authority
GB
United Kingdom
Prior art keywords
wide angle
group
angle lenses
aug
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.)
Expired
Application number
GB3680074A
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.)
Optigon Research and Development Corp
Original Assignee
Optigon Research and Development Corp
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
Priority claimed from US05/492,403 external-priority patent/US4099849A/en
Application filed by Optigon Research and Development Corp filed Critical Optigon Research and Development Corp
Publication of GB1484322A publication Critical patent/GB1484322A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/62—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having six components only

Abstract

1484322 Wide angle lenses OPTIGON RESEARCH & DEVELOPMENT CORP 21 Aug 1974 [27 Aug 1973 29 July 1974] 36800/74 Heading G2J A wide angle lens of the retrofocus type comprises a negative group L 1 , L 2 ; a second, negative group in the form of a meniscus L 3 having a concave image-side surface; a third, positive group L 4 having a convex object-side surface; a fourth, positive group L 5 , L 6 having a convex image-side surface; a fifth negative group L 7 and a sixth, positive group L 8 , L 9 having convex image and object-side surfaces. Optical data are given for eight Examples.
GB3680074A 1973-08-27 1974-08-21 Wide angle lenses Expired GB1484322A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39211873A 1973-08-27 1973-08-27
US05/492,403 US4099849A (en) 1973-08-27 1974-07-29 Wide angle objective

Publications (1)

Publication Number Publication Date
GB1484322A true GB1484322A (en) 1977-09-01

Family

ID=27013758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3680074A Expired GB1484322A (en) 1973-08-27 1974-08-21 Wide angle lenses

Country Status (5)

Country Link
JP (1) JPS5083019A (en)
DE (1) DE2440944A1 (en)
GB (1) GB1484322A (en)
HK (1) HK14879A (en)
MY (1) MY7900200A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6080816A (en) * 1983-10-11 1985-05-08 Olympus Optical Co Ltd Objective lens of endoscope with less distortion aberration
JPH09269450A (en) * 1996-03-29 1997-10-14 Olympus Optical Co Ltd Objective lens for endoscope
JP5476881B2 (en) * 2008-09-18 2014-04-23 株式会社ニコン Wide-angle lens, optical device, and wide-angle lens focusing method
CN112014956B (en) * 2020-10-14 2021-01-01 瑞泰光学(常州)有限公司 Image pickup optical lens

Also Published As

Publication number Publication date
MY7900200A (en) 1979-12-31
DE2440944A1 (en) 1975-04-24
HK14879A (en) 1979-03-30
JPS5083019A (en) 1975-07-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee