GB646029A - Improvements relating to extendable optical sighting or observation instruments - Google Patents

Improvements relating to extendable optical sighting or observation instruments

Info

Publication number
GB646029A
GB646029A GB875147A GB875147A GB646029A GB 646029 A GB646029 A GB 646029A GB 875147 A GB875147 A GB 875147A GB 875147 A GB875147 A GB 875147A GB 646029 A GB646029 A GB 646029A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
optical sighting
observation instruments
extendable
extendable optical
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
GB875147A
Inventor
Charles Dalrymple Macgill
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics 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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Priority to GB875147A priority Critical patent/GB646029A/en
Publication of GB646029A publication Critical patent/GB646029A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02B23/08—Periscopes

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
GB875147A 1947-04-01 1947-04-01 Improvements relating to extendable optical sighting or observation instruments Expired GB646029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB875147A GB646029A (en) 1947-04-01 1947-04-01 Improvements relating to extendable optical sighting or observation instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB875147A GB646029A (en) 1947-04-01 1947-04-01 Improvements relating to extendable optical sighting or observation instruments

Publications (1)

Publication Number Publication Date
GB646029A true GB646029A (en) 1950-11-15

Family

ID=9858576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB875147A Expired GB646029A (en) 1947-04-01 1947-04-01 Improvements relating to extendable optical sighting or observation instruments

Country Status (1)

Country Link
GB (1) GB646029A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667813A (en) * 1948-12-22 1954-02-02 Barr & Stroud Ltd Extensible optical sighting or observation instrument
BE1022270B1 (en) * 2014-09-04 2016-03-08 Cockerill Maintenance & Ingenierie S.A. RETRACTABLE VISEE SYSTEM

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667813A (en) * 1948-12-22 1954-02-02 Barr & Stroud Ltd Extensible optical sighting or observation instrument
BE1022270B1 (en) * 2014-09-04 2016-03-08 Cockerill Maintenance & Ingenierie S.A. RETRACTABLE VISEE SYSTEM
WO2016034528A1 (en) * 2014-09-04 2016-03-10 Cockerill Maintenance & Ingenierie S.A. Retractable aiming system

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