GB8918633D0 - Optical viewing apparatus - Google Patents

Optical viewing apparatus

Info

Publication number
GB8918633D0
GB8918633D0 GB8918633A GB8918633A GB8918633D0 GB 8918633 D0 GB8918633 D0 GB 8918633D0 GB 8918633 A GB8918633 A GB 8918633A GB 8918633 A GB8918633 A GB 8918633A GB 8918633 D0 GB8918633 D0 GB 8918633D0
Authority
GB
United Kingdom
Prior art keywords
viewing apparatus
optical viewing
optical
viewing
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
GB8918633A
Other versions
GB2279154B (en
GB2279154A (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.)
Leonardo MW Ltd
Original Assignee
GEC Marconi Avionics Holdings 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 GEC Marconi Avionics Holdings Ltd filed Critical GEC Marconi Avionics Holdings Ltd
Priority to GB8918633A priority Critical patent/GB2279154B/en
Publication of GB8918633D0 publication Critical patent/GB8918633D0/en
Publication of GB2279154A publication Critical patent/GB2279154A/en
Application granted granted Critical
Publication of GB2279154B publication Critical patent/GB2279154B/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
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/10—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator
GB8918633A 1989-08-15 1989-08-15 Optical viewing apparatus Expired - Fee Related GB2279154B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8918633A GB2279154B (en) 1989-08-15 1989-08-15 Optical viewing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8918633A GB2279154B (en) 1989-08-15 1989-08-15 Optical viewing apparatus

Publications (3)

Publication Number Publication Date
GB8918633D0 true GB8918633D0 (en) 1994-09-21
GB2279154A GB2279154A (en) 1994-12-21
GB2279154B GB2279154B (en) 1995-06-28

Family

ID=10661675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8918633A Expired - Fee Related GB2279154B (en) 1989-08-15 1989-08-15 Optical viewing apparatus

Country Status (1)

Country Link
GB (1) GB2279154B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE1000697A1 (en) * 2010-06-29 2011-11-08 Flir Systems Ab Device for uniforming of equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178863B (en) * 1985-08-06 1989-08-16 Ferranti Plc Optical viewing apparatus

Also Published As

Publication number Publication date
GB2279154B (en) 1995-06-28
GB2279154A (en) 1994-12-21

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Legal Events

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

Effective date: 20010815