| 摘要 |
An image projection apparatus and method includes a light separating unit that separates white light into monochromatic lights of different wavelengths, and then forms a plurality of monochromatic color stripes. A galvanometer receives the separated monochromatic lights and deflects the lights by a predetermined angle. The holographic optical element such as a hologram element can be used as the light separating unit, obtaining an advantageous reduction in light loss. Further, when the separated RGB monochromatic lights are scanned on the DMD panel by the use of galvanometer, only one color stripe is projected to be incident on the DMD panel in the initial scanning, thereby increasing light utilization efficiency. As a result, the quantity of light increases, the light efficiency improves, and the brightness of the realized image is enhanced.
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