| 摘要 |
PROBLEM TO BE SOLVED: To provide a dual lamp coupling system in which separate integrator rods for each lamp are replaced with a single rod, to benefit from advantages such as simple mounting, simple alignment, less coupling loss, lower cost since there is no need to provide a mirror coating (only AR coating is required), and eliminate risk of high power damage on the mirror coating. SOLUTION: A dual lamp coupling system is provided using a single equilateral 60 degree triangular prism in front of the integrator rod 5 to homogenize the focused light from two lamps, with increased projection brightness. According to one embodiment, the equilateral 60 degree triangular prism is integrated into the end of the rod. COPYRIGHT: (C)2008,JPO&INPIT
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