Light source device and projection television

摘要

An improvement to a projection display is provided. The invention relates to an optical source device comprising a lamp, a beam shaping optical system including a light uniforming element for uniforming a light intensity distribution in a plane perpendicular to the direction of propagation of received emitting light of the lamp, an optical deflector for changeably reflecting the received emitting light of the beam shaping optical system in either one of two directions, and an optical reflector for reflecting light reflected in said one of two directions, along an axis of said one of two directions.