| 摘要 |
An LCD position determination apparatus for an LCD projector which is capable of shortening an assembling time of a projector by facilitating or enabling alignment of the red (R), green (G) and blue (B) cells by detecting the positions of the R, G and B LCDs at the same time when installing the R, G and B LCDs at or along three surfaces of a prism. The apparatus includes the red LCD, green LCD and blue LCD optically aligned with three respective surfaces of the color mixing prism, a pair of two-way splitting mirrors aligned with a fourth surface of the prism, and an automatic collimator apparatus having an ocular lens by which an image of a predetermined corner portion of each of the LCDs transmitted via the two-way mirrors is viewed.
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