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US 4,356,758 AGranted
Aiming instrument
AssigneeAktiebolaget Bofors
InventorTorbern Teiling
Life of this patent
Estimating the term…
Abstract
Apparatus for aiming a gun barrel in a specific direction. A panoramic optical aiming system is provided which includes image reversion optics for compensating for image rolling. Additional control of the reversion optics is provided for compensating for ground inclination. A calculating unit may be employed to control the optical aiming system in response to various sensed conditions.
Claims5
An automatic instrument for aiming a gun barrel in a specific direction in elevation and azimuth comprising:
- an optical sight including a top prism rotatable about a vertical axis, a reversion prism and objective lens, said reversion prism being rotatable for compensating rolling of an image due to rotation of said top prism;
- said optical sight positionable in azimuth and elevation through a first servo control means;
- second servo control means for controlling said optics for rotating said reversion prism whereby ground inclination is compensated;
- a pendulum unit for providing signal proportional to the inclination of the line of sight and pitch angle of said line of sight;
- an angle sensor for providing a signal indicating the elevation of said gun barrel;
- calculating unit connected to receive said signals;
- means for applying an azimmuthal reference and pitch angle to said calculating unit;
- and
- means connected to said calculating unit for providing azimuth and elevation angles to said optical sight for controlling the position of said sight, and for supplying signals to said servo control means whereby ground inclination is compensated.
6 more elements
Dependencies are inferred from the claim text.