GB1333591A - Stabilisation of optical sighting systems - Google Patents

Stabilisation of optical sighting systems

Info

Publication number
GB1333591A
GB1333591A GB1333591DA GB1333591A GB 1333591 A GB1333591 A GB 1333591A GB 1333591D A GB1333591D A GB 1333591DA GB 1333591 A GB1333591 A GB 1333591A
Authority
GB
United Kingdom
Prior art keywords
reflector
mass
sight
line
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.)
Expired
Application number
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.)
British Aircraft Corp Ltd
Original Assignee
British Aircraft Corp 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 British Aircraft Corp Ltd filed Critical British Aircraft Corp Ltd
Publication of GB1333591A publication Critical patent/GB1333591A/en
Expired 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
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

1333591 Optical systems BRITISH AIRCRAFT CORP Ltd 19 Jan 1971 [19 Jan 1970] 2422/70 Heading G2J A vibration-stabilized optical sight comprises a sighting telescope 31 rigidly mounted on a rigid mounting member 30 on which a reflector 33 is pivotally mounted in a position to reflect the line of sight of the telescope, the pivotal axis 34 of the mirror being at right angles to the line of sight, and a mass 35 also pivotally mounted on member 30, the pivotal axis 36 of the mass being spaced from and parallel to the axis 34, the mass and the reflector being inter-connected by a transmission 37 of moment of inertia low compared total angular inertia of the mass and the reflector and in which the velocity ratio is so chosen in relation to the ratio of the angular momentum of the reflector to that of the mass that movement of the telescope results in compensating pivotal motion of the mass and reflector to keep the line of sight still. As shown, a second reflector 38 is mounted on a rotatable shaft 39 also carrying mass 42 to provide stabilization in a second direction. Alternatively, Fig. 1 (not shown) the mass 35 and transmission may be mounted on shaft 39, and reflector 33 fixed, reflector 38 pivoting in two planes to give both stabilizations. The rotatable mirrors and weights may be provided with restoring springs and damping means to restore the pivoted reflector to a centralized position non- resonantly. The reflectors may be mirrors, as shown, or prisms.
GB1333591D 1971-01-19 1971-01-19 Stabilisation of optical sighting systems Expired GB1333591A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB242270 1971-01-19

Publications (1)

Publication Number Publication Date
GB1333591A true GB1333591A (en) 1973-10-10

Family

ID=9739291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1333591D Expired GB1333591A (en) 1971-01-19 1971-01-19 Stabilisation of optical sighting systems

Country Status (1)

Country Link
GB (1) GB1333591A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947131A1 (en) * 1978-11-23 1980-06-04 British Aerospace Plc, London CONTROL DEVICE FOR OPTICAL INSTRUMENTS
US4340271A (en) * 1980-04-04 1982-07-20 The Boeing Company Internal body mounted system for isolation of, in one degree of freedom, a beam projected from an optical system which is subject to rotational vibration
GB2160995A (en) * 1984-06-30 1986-01-02 Francis Albert Shaw Innes Optical instrument stabiliser
US4859045A (en) * 1986-12-02 1989-08-22 State Of Israel-Ministry Of Defence, Armament Development Authority Rafael Viewfinder system for a periscope

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947131A1 (en) * 1978-11-23 1980-06-04 British Aerospace Plc, London CONTROL DEVICE FOR OPTICAL INSTRUMENTS
US4340271A (en) * 1980-04-04 1982-07-20 The Boeing Company Internal body mounted system for isolation of, in one degree of freedom, a beam projected from an optical system which is subject to rotational vibration
GB2160995A (en) * 1984-06-30 1986-01-02 Francis Albert Shaw Innes Optical instrument stabiliser
US4859045A (en) * 1986-12-02 1989-08-22 State Of Israel-Ministry Of Defence, Armament Development Authority Rafael Viewfinder system for a periscope

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee