SYSTEM AND APPARATUS FOR HIGHLIGHTING A PROJECTED IMAGE ON A SCREEN AND COMPONENTS THEREOF

摘要

A system and apparatus for highlighting a projected image on a screen andcomponents thereof. Practice of the invention provides for an improvement inthe way thatscreen images presented by a presenter using an overriding light source beam,such as alaser pointer can be obtained. Preferably, the primary image light source andthe overridinglight source are produced in the same projector.