Optical sights
AssigneeThe Marconi Company Limited
InventorFrederick Garner
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Abstract
The invention provides a stabilizable optical gun sight including an optical system having an eye piece and an objective lens and between the eyepiece and objective lens, two optical wedges which are arranged to be driven differentially and together in order to deflect the line of sight through the optical system in response to servo control signals applied to the driving means.
Claims5
A stabilisable optical sight suitable for use with a fighting tank gun control system which has gun barrel stabilisation apparatus including means for developing stabilisation error signals resulting from movement of the tank, and means for utilising the thus developed stabilisation error signals to drive the tank's gun barrel in elevation and the tank's gun turret in azimuth to provide the required stabilisation, said sight comprising:
- an optical system with an eye piece, an objective lens, and a pair of serially-arranged optical wedges disposed between said eye piece and said objective lens on the optical axis of said optical system, said pair of optical wedges being mounted on first and second mounting means so as respectively to be rotatable about said optical axis both relatively one wedge with respect to the other and together, whereby the line of sight through said optical system may be moved by rotation of one or both of said wedges;
- driving means connected to said first and second mounting means for causing said optical wedges to be so rotated in operation;
- and
- means for applying servo control signals to said driving means, whereby in operation the wedges may be so rotated in order to stabilise the sight against movement of a body on which it is carried.
Dependencies are inferred from the claim text.