GB1473966A - Wide angle objective of long back focal length comprising six lens elements - Google Patents

Wide angle objective of long back focal length comprising six lens elements

Info

Publication number
GB1473966A
GB1473966A GB3405275A GB3405275A GB1473966A GB 1473966 A GB1473966 A GB 1473966A GB 3405275 A GB3405275 A GB 3405275A GB 3405275 A GB3405275 A GB 3405275A GB 1473966 A GB1473966 A GB 1473966A
Authority
GB
United Kingdom
Prior art keywords
wide angle
focal length
lens elements
back focal
long back
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
GB3405275A
Other languages
English (en)
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.)
Jenoptik AG
Original Assignee
Jenoptik Jena GmbH
Carl Zeiss Jena GmbH
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 Jenoptik Jena GmbH, Carl Zeiss Jena GmbH filed Critical Jenoptik Jena GmbH
Publication of GB1473966A publication Critical patent/GB1473966A/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
    • G02B13/04—Reversed telephoto objectives
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
GB3405275A 1974-09-23 1975-08-15 Wide angle objective of long back focal length comprising six lens elements Expired GB1473966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD18126674A DD115762A1 (de) 1974-09-23 1974-09-23

Publications (1)

Publication Number Publication Date
GB1473966A true GB1473966A (en) 1977-05-18

Family

ID=5497411

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3405275A Expired GB1473966A (en) 1974-09-23 1975-08-15 Wide angle objective of long back focal length comprising six lens elements

Country Status (7)

Country Link
AT (1) AT339066B (de)
CH (1) CH589858A5 (de)
DD (1) DD115762A1 (de)
DE (1) DE2525460A1 (de)
FR (1) FR2285625A1 (de)
GB (1) GB1473966A (de)
NL (1) NL7508459A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263916A (ja) * 1984-06-13 1985-12-27 Olympus Optical Co Ltd 内焦式内視鏡対物レンズ
GB2180954A (en) * 1985-09-27 1987-04-08 Pilkington Perkin Elmer Ltd Lenses for use with radiation in the millimetre waveband

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5944014A (ja) * 1982-09-06 1984-03-12 Sony Corp 広角レンズ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263916A (ja) * 1984-06-13 1985-12-27 Olympus Optical Co Ltd 内焦式内視鏡対物レンズ
JPH043851B2 (de) * 1984-06-13 1992-01-24
GB2180954A (en) * 1985-09-27 1987-04-08 Pilkington Perkin Elmer Ltd Lenses for use with radiation in the millimetre waveband
GB2180954B (en) * 1985-09-27 1989-09-20 Pilkington Perkin Elmer Ltd Improvements in or relating to lenses

Also Published As

Publication number Publication date
NL7508459A (nl) 1976-03-25
FR2285625B1 (de) 1979-03-23
CH589858A5 (de) 1977-07-15
DD115762A1 (de) 1975-10-12
DE2525460A1 (de) 1976-04-01
ATA427275A (de) 1977-01-15
AT339066B (de) 1977-09-26
FR2285625A1 (fr) 1976-04-16

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Legal Events

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