| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a projector capable of detecting appropriately an opening/closing state of a lens cover. Ž<P>SOLUTION: The projector includes a projection lens for projecting an optical image, and casings 21, 23. The casings 21, 23 includes: the lens cover 7 provided freely slidably with respect to the casings 21, 23, slid along one direction to cover the projection port of the projection lens, and slid along the other direction to expose the projection port; and a detecting means 6 having a light-emitting part 61 and a photoreception part 62, and for detecting the opening/closing state of the lens cover 7, based on the presence of a light beam received by the light-receiving part 62. The light-emitting part 61 and a photoreception part 62 are arranged to make an optical path of the light beam incident from the light-emitting part 61 onto the photoreception part 62 intersect a sliding direction of the lens cover 7. The lens cover 7 includes a shielding part 7B3 for shielding the light beam incident from the light-emitting part 61 onto the photoreception part 62, and the shielding part 7B3 is formed with a prescribed width along the sliding direction of the lens cover 7. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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