Definitions for "Throw distance"
Keywords:  projector, lens, distance, beam, screen
The distance between a front projector and the screen.
Video projectors typically are rated for minimum and maximum throw distances. The minimum distance is the closest the projector can be placed to the screen while maintaining proper focus. The maximum distance is typically a recommended distance based upon image brightness.
Length of the projection beam needed for a projector to produce image of a particular size.