GB9909761D0 - Afocal telescope - Google Patents

Afocal telescope

Info

Publication number
GB9909761D0
GB9909761D0 GBGB9909761.0A GB9909761A GB9909761D0 GB 9909761 D0 GB9909761 D0 GB 9909761D0 GB 9909761 A GB9909761 A GB 9909761A GB 9909761 D0 GB9909761 D0 GB 9909761D0
Authority
GB
United Kingdom
Prior art keywords
afocal telescope
afocal
telescope
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
GBGB9909761.0A
Other versions
GB2339304A (en
GB2339304B (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.)
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
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 true GB9909761D0 (en) 1999-06-23
GB2339304A GB2339304A (en) 2000-01-19
GB2339304B 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)

Family Cites Families (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
US5044706A (en) * 1990-02-06 1991-09-03 Hughes Aircraft Company Optical element employing aspherical and binary grating optical surfaces

Also Published As

Publication number Publication date
GB2339304A (en) 2000-01-19
GB2339304B (en) 2002-01-30

Similar Documents

Publication Publication Date Title
AU1599200A (en) Upgradeable telescope system
IL150371A0 (en) Navigation
GB2346115B (en) Drawing compass
GB9809739D0 (en) Afocal telescope
CA88765S (en) Mirror
GB9621127D0 (en) Telescope mountings
GB9909761D0 (en) Afocal telescope
GB9922530D0 (en) Distractor
PL326400A1 (en) Telescope
KR100225264B1 (en) Telescope cylinder
TW377823U (en) Foldable telescope
GB9808642D0 (en) Binoculars
AU138362S (en) Binoculars
HU9901141D0 (en) Panoramic telescope
HU9802953D0 (en) Panoramic telescope
AU3437399A (en) Catadioptric telescope
TW456520U (en) Eyeglasses-type telescope
HU9800103V0 (en) Panoramic telescopes
GB9804871D0 (en) Terrestrial telescope
GB9804155D0 (en) Compass
CA83116S (en) Aerial
GB9820011D0 (en) Optical rangefinder
GB9800419D0 (en) Navagational course finder
TW349675U (en) Structure improvement for coin-type telescope
CA84578S (en) Sunglasses

Legal Events

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

Effective date: 20140429