Patent ID: 6404559
Filing Date: 2002-06-11
Classification: G02B,H04N

Abstract:
A twin-lens projection display, comprising:a color separating mirror set adapted to separate input light into first, second and third color components; a dichroic synthesizing prism having a first input side, a second input side, and an output side; an optical path compensating prism having an input side and an output side; a first light modulator for modulating the first color component from said color separating mirror set, said first light modulator being disposed adjacent to said first input side of said dichroic synthesizing prism, and providing the modulated first color component thereto, said dichroic synthesizing prism outputting the modulated first color component at said output side thereof; a second light modulator for modulating the second color component from said color separating mirror set, said second light modulator being disposed adjacent to said second input side of said dichroic synthesizing prism, and providing the modulated second color component thereto, said dichroic synthesizing prism outputting the modulated second color component at said output side thereof; a third light modulator for modulating the third color component from said color separating mirror set, said third light modulator being disposed adjacent to said input side of said optical path compensating prism, and providing the modulated third color component thereto, said optical path compensating prism outputting the modulated third color component at said output side thereof; a first projection lens disposed adjacent to said output side of said dichroic synthesizing prism so as to receive the modulated first and second color components therefrom; and a second projection lens disposed adjacent to said output side of said optical path compensating prism so as to receive the modulated third color component therefrom.