Patent ID: 6967775

Claim:
An off-axis variable dot size sighting system comprising, a housing having a sighting axis therethrough, a transparent, non-magnifying sighting mirror lens mounted adjacent one end of said housing, said sighting mirror lens having a concave spherical surface which has a focal plane, a coating on said concave spherical surface of said sighting mirror lens which coating reflects a specified color but is transparent to all other portions of the visible light spectrum, a light source mounted to said housing for projecting a beam of light toward said focal plane of said sighting mirror lens, at least one control lens mounted adjacent to said light source and interposed in said light beam from said light source to focus an image of said light beam at said focal plane, and a reflecting mirror mounted in said housing at an angle to said sighting axis to reflect said image of said light beam from said focal plane to said sighting mirror lens whereby said beam of light is collimated by said sighting mirror lens and reflected along said sighting axis to the opposite end of said housing, at least one of said control lens and said light source being movable relative to the other to alter the size of said image of said light beam.