Triangulation Rangefinder and Sight Positioning System
A rangefinder includes an angle sensitive transducer and a programmed data processor to calculate the distance to a target. In one embodiment, the rangefinder also includes a point-to-point measuring device. Another embodiment provides a linear actuator to selectively move a sight indicator vertically. A yet additional embodiment includes a liquid crystal display which displays information to the user.
Hargrove, Jeffrey; Wickham, William G.; and Briggs, John E., "Triangulation Rangefinder and Sight Positioning System" (1999). Mechanical Engineering Patents. 2.