Illumination system and optical projection apparauts
An illumination system including an optical element, a primary light source, an auxiliary light source and a light guide element is provided. The optical element has a light incident end, and the primary light source and the auxiliary light source are disposed at the side of the light incident end....
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| creator | WANG, SZE-KE |
| description | An illumination system including an optical element, a primary light source, an auxiliary light source and a light guide element is provided. The optical element has a light incident end, and the primary light source and the auxiliary light source are disposed at the side of the light incident end. The primary light source is suitable for providing a primary light beam and the auxiliary light source is suitable for providing an auxiliary light beam. The time of the primary light source for being able to providing the maximum emitting brightness after turning on is longer than the auxiliary light source. The light guide element is suitable for being shifted to or being shifted away from the transmission paths of the primary light beam and the auxiliary light beam to make the primary light beam or the auxiliary light beam transmit to the optical element. Thus, when the illumination system is turned on, an illumination beam with enough brightness is quickly provided. Further, an optical projection apparatus having the illumination system to quickly display an image when being turned on is provided. |
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The optical element has a light incident end, and the primary light source and the auxiliary light source are disposed at the side of the light incident end. The primary light source is suitable for providing a primary light beam and the auxiliary light source is suitable for providing an auxiliary light beam. The time of the primary light source for being able to providing the maximum emitting brightness after turning on is longer than the auxiliary light source. The light guide element is suitable for being shifted to or being shifted away from the transmission paths of the primary light beam and the auxiliary light beam to make the primary light beam or the auxiliary light beam transmit to the optical element. Thus, when the illumination system is turned on, an illumination beam with enough brightness is quickly provided. 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The optical element has a light incident end, and the primary light source and the auxiliary light source are disposed at the side of the light incident end. The primary light source is suitable for providing a primary light beam and the auxiliary light source is suitable for providing an auxiliary light beam. The time of the primary light source for being able to providing the maximum emitting brightness after turning on is longer than the auxiliary light source. The light guide element is suitable for being shifted to or being shifted away from the transmission paths of the primary light beam and the auxiliary light beam to make the primary light beam or the auxiliary light beam transmit to the optical element. Thus, when the illumination system is turned on, an illumination beam with enough brightness is quickly provided. Further, an optical projection apparatus having the illumination system to quickly display an image when being turned on is provided.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS |
| title | Illumination system and optical projection apparauts |
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