US Patent 8201741 Trajectory compensating sighting device systems and methods

A sighting system for visually acquiring a target includes an optic device having a transmissive LED array affixed thereon. The transmissive LED array includes two or more LED elements that are separately addressable to provide an aiming point. In embodiments, the sighting system receives information from an input system, such as ammunition information or environmental information, executes a ballistics program to determine ballistics information using the received information, and determines a range to the target. A controller calculates an aiming point using the ballistics information and the target range. The controller then addresses or energizes one of the LED elements to provide the aiming point.