| 摘要 |
PROBLEM TO BE SOLVED: To provide a light modulator capable of effectively utilizing light passing through a pixel or reflected thereby and getting along without using a projection lens of a large diameter, and to provide a projector made to be excellent in utilization efficiency of light and made to be compact by using the light modulator. SOLUTION: By appropriately setting a difference of refractive index between microprism arrays 4, 5 and glass substrates 6, 7, shapes of them and a distance between the microprism arrays 4, 5, incident light ILa passing through a region DI is emitted to the outer part as emission light ELa from a region DI' altogether, thereby, the parallelism is maintained and, resultantly, the desired light modulator can be obtained. Further, by using the same, the projector which is excellent in utilization efficiency of light and is compact can be obtained. COPYRIGHT: (C)2006,JPO&NCIPI
|
