Patent ID: 6179449
Filing Date: 2001-01-30
Classification: G01J,H01L,Y10S

Abstract:
A multi-color semiconductor lamp, comprising:a semiconductor light source activable so as to generate a light output;a dispersing prism having an input side located in front of said light source to receive the light output, and an output side, said prism separating the light output of said light source into a plurality of chromatic components that radiate at different angles at said output side;a lens disposed in front of said output side of said prism such that a vertex of a conical focusing region associated with said lens is located at said output side of said prism;means for varying spatial position of one of said light source and said prism relative to the other one of said light source and said prism; andmeans for activating said light source when the spatial position of said one of said light source and said prism has been varied such that a selected one of the chromatic components is registered with the conical focusing region of said lens.