US Patent 6952881 Programmable sighting system for a hunting bow

A programmable sighting system for a hunting bow or professional archery bow. The system comprises a housing assembly for mounting the sighting system on the bow. A transparent window is positioned in the housing for viewing therethrough by a user to a target, and for projecting display data thereon. A programmable subsystem is contained within the housing assembly for causing display of the display data at selected locations on the window in response to control by the user.