Tilting Wedge Prisms for Precision Gun Sight Adjustment

The patent replaces the conventional mechanical adjustment system with an optical beam-steering system using tiltable wedge prisms. Instead of mechanically moving the reticle within the sight tube, the invention uses prisms to optically deflect the light path, achieving point of aim adjustment without mechanical movement of reticle components. This substitution enables precise adjustment with a much wider range while maintaining a compact main tube size.

The patent replaces mechanical reticle movement with optical beam steering using wedge prisms. The tiltable prisms deflect light rays to change the apparent position of the point of aim without physically moving any reticle elements. This optical approach avoids the chromatic errors that occur in mechanical systems where reticle components move through the optical path, as the prism material and geometry can be optimized to minimize chromatic dispersion.

The patent employs tiltable wedge prisms that can deflect light beams through large angles to achieve extensive point of aim adjustment ranges. The prisms are positioned in the optical path where they can rotate or tilt to change the direction of light rays, enabling adjustment ranges that would require much longer mechanical sight tubes. This optical approach decouples adjustment range from physical sight dimensions.

The patent replaces mechanical reticle adjustment mechanisms with an optical beam-steering system using tiltable wedge prisms. The prism tilting mechanism uses precision rotational stages or gimbal mounts that can be manufactured with high precision and are less susceptible to wear than linear mechanical adjustment mechanisms. The optical system translates small angular changes in prism orientation into precise point of aim adjustments, achieving superior precision and long-term stability without the tolerance accumulation and wear problems of mechanical reticle movement systems.