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GB2180954B - Improvements in or relating to lenses - Google Patents

Improvements in or relating to lenses

Info

Publication number
GB2180954B
GB2180954B GB8621354A GB8621354A GB2180954B GB 2180954 B GB2180954 B GB 2180954B GB 8621354 A GB8621354 A GB 8621354A GB 8621354 A GB8621354 A GB 8621354A GB 2180954 B GB2180954 B GB 2180954B
Authority
GB
United Kingdom
Prior art keywords
lenses
relating
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
GB8621354A
Other versions
GB2180954A (en
GB8621354D0 (en
Inventor
John Malcolm Palmer
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.)
Qioptiq Ltd
Original Assignee
Pilkington PE 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 Pilkington PE Ltd filed Critical Pilkington PE Ltd
Publication of GB8621354D0 publication Critical patent/GB8621354D0/en
Publication of GB2180954A publication Critical patent/GB2180954A/en
Application granted granted Critical
Publication of GB2180954B publication Critical patent/GB2180954B/en
Expired legal-status Critical Current

Links

Classifications

    • 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 -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Lenses (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB8621354A 1985-09-27 1986-09-04 Improvements in or relating to lenses Expired GB2180954B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8523809 1985-09-27

Publications (3)

Publication Number Publication Date
GB8621354D0 GB8621354D0 (en) 1986-10-15
GB2180954A GB2180954A (en) 1987-04-08
GB2180954B true GB2180954B (en) 1989-09-20

Family

ID=10585789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8621354A Expired GB2180954B (en) 1985-09-27 1986-09-04 Improvements in or relating to lenses

Country Status (1)

Country Link
GB (1) GB2180954B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9103846D0 (en) * 1991-02-23 1991-04-10 Vlsi Vision Ltd Lens system
CN102213821B (en) * 2011-06-24 2013-04-10 浙江舜宇光学有限公司 Near infrared lens

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB844732A (en) * 1957-11-12 1960-08-17 Zeiss Stiftung Photographic objective
GB1182402A (en) * 1967-03-30 1970-02-25 Isco Optische Werke Gmbh Photographic and Cinematographic Lenses
GB1473966A (en) * 1974-09-23 1977-05-18 Zeiss Jena Veb Carl Wide angle objective of long back focal length comprising six lens elements
US4472034A (en) * 1981-07-21 1984-09-18 Olympus Optical Co., Ltd. Optical read-out lens system for optically recorded disks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB844732A (en) * 1957-11-12 1960-08-17 Zeiss Stiftung Photographic objective
GB1182402A (en) * 1967-03-30 1970-02-25 Isco Optische Werke Gmbh Photographic and Cinematographic Lenses
GB1473966A (en) * 1974-09-23 1977-05-18 Zeiss Jena Veb Carl Wide angle objective of long back focal length comprising six lens elements
US4472034A (en) * 1981-07-21 1984-09-18 Olympus Optical Co., Ltd. Optical read-out lens system for optically recorded disks

Also Published As

Publication number Publication date
GB2180954A (en) 1987-04-08
GB8621354D0 (en) 1986-10-15

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Legal Events

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

Effective date: 19930904