Abstract: A scope is disclosed as including a display to display a plurality of reticle-patterns, means for selecting one of the reticle-patterns to be displayed by the display, and an optical prism for projecting the displayed reticle-pattern onto a piece of lens viewable by a user.

Abstract: A laser range finder scope for measuring the distance between a target and the scope based on the time-of-flight of laser impulses is disclosed as including means for transmitting laser impulses toward the target and generating a first time signal corresponding to the transmission; means for receiving laser impulses reflected from the target and generating a second time signal corresponding to the reception; means for delaying said first time signal to provide a third time signal; means for calculating the time-of-flight by comparing said second time signal and third time signal; and a scope with a reticle with a plurality of indicia selectively lightable to each indicate the appropriate reticle scale to aim at the target.