Synthetic illuminant for projection display

摘要

In many projection systems, the high pressure mercury arc lamp, is used generally as a lighting source. As for the lamp of this kind, with because output or there is an insufficient possibility in the aspect of the spectrum, the light from this lamp and the light from the 2nd optical formation vessel it is required that it synthesizes. The mercury lamp of another type, or, one or it can actualize the 2nd optical formation vessel, with the solid source which consists of the plural light-emitting diodes and the like. With this invention, the various methods of synthesizing the light from two optical formation vessels are stated. It can actualize the 2nd illuminant, with arrangement of the many red LED which supplies the red light which is formed by the mercury light/write. As for the tunnel integrator, in order to convert the light ray which is synthesized homogeneously, and in order to decrease the angular distance between the light ray from two optical formation vessels, it can use.