| 摘要 |
An optical system of a liquid crystal projector that is capable of reducing a full length of the optical system including three reflective liquid crystal display panels. In the system, an illuminating unit allows a white light generated from a light source to have any one linear polarized light and a uniform light distribution. A color separator separates the white light from the illuminating unit in accordance with a wavelength band to obtain a first color light, and polarization-converts the remaining lights in accordance with a wavelength band and then separates them into second and third color lights depending on their polarization components. First to third liquid crystal display panels uses the first to third color lights from the color separator to implement first to third color pictures, respectively. A picture combining unit combines the first to third color lights having acquired picture information from the first to third liquid crystal display panels. A projection lens unit projects the combined picture from the picture combining unit onto a screen on an expanded scale. Accordingly, the optical system can reduce the number of optical elements. <IMAGE> |
