GB2339304B - Infrared Afocal Telescope With Three Element Objective And Hybrid Surface - Google Patents

Infrared Afocal Telescope With Three Element Objective And Hybrid Surface

Info

Publication number
GB2339304B
GB2339304B GB9909761A GB9909761A GB2339304B GB 2339304 B GB2339304 B GB 2339304B GB 9909761 A GB9909761 A GB 9909761A GB 9909761 A GB9909761 A GB 9909761A GB 2339304 B GB2339304 B GB 2339304B
Authority
GB
United Kingdom
Prior art keywords
hybrid surface
afocal telescope
element objective
infrared
infrared afocal
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 - Fee Related
Application number
GB9909761A
Other versions
GB9909761D0 (en
GB2339304A (en
Inventor
David Gordon Norrie
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
Priority claimed from GBGB9809739.7A external-priority patent/GB9809739D0/en
Application filed by Pilkington PE Ltd filed Critical Pilkington PE Ltd
Priority to GB9909761A priority Critical patent/GB2339304B/en
Publication of GB9909761D0 publication Critical patent/GB9909761D0/en
Publication of GB2339304A publication Critical patent/GB2339304A/en
Application granted granted Critical
Publication of GB2339304B publication Critical patent/GB2339304B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Lenses (AREA)
  • Telescopes (AREA)
GB9909761A 1998-05-08 1999-04-29 Infrared Afocal Telescope With Three Element Objective And Hybrid Surface Expired - Fee Related GB2339304B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9909761A GB2339304B (en) 1998-05-08 1999-04-29 Infrared Afocal Telescope With Three Element Objective And Hybrid Surface

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9809739.7A GB9809739D0 (en) 1998-05-08 1998-05-08 Afocal telescope
GB9909761A GB2339304B (en) 1998-05-08 1999-04-29 Infrared Afocal Telescope With Three Element Objective And Hybrid Surface

Publications (3)

Publication Number Publication Date
GB9909761D0 GB9909761D0 (en) 1999-06-23
GB2339304A GB2339304A (en) 2000-01-19
GB2339304B true GB2339304B (en) 2002-01-30

Family

ID=26313610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9909761A Expired - Fee Related GB2339304B (en) 1998-05-08 1999-04-29 Infrared Afocal Telescope With Three Element Objective And Hybrid Surface

Country Status (1)

Country Link
GB (1) GB2339304B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451276A (en) * 1974-05-06 1976-09-29 Rank Organisation Ltd Lens structure
EP0441206A1 (en) * 1990-02-06 1991-08-14 Hughes Aircraft Company Optical element employing aspherical and binary grating optical surfaces

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451276A (en) * 1974-05-06 1976-09-29 Rank Organisation Ltd Lens structure
EP0441206A1 (en) * 1990-02-06 1991-08-14 Hughes Aircraft Company Optical element employing aspherical and binary grating optical surfaces

Also Published As

Publication number Publication date
GB9909761D0 (en) 1999-06-23
GB2339304A (en) 2000-01-19

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Legal Events

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

Effective date: 20140429