| 摘要 |
An SLR digital still camera includes a photographing lens, a quick return mirror made of a half mirror which is movable between a viewing position and a photographing position, a CCD located in the focal plane, an anti-reflection plate which is movable close to or away from a rear surface of the quick return mirror, and an anti-reflection plate driving mechanism which moves the anti-reflection plate to a retracted position in which the anti-reflection plate is retracted from the photographing light path when the quick return mirror is in the viewing position, and moves the anti-reflection plate to a cover position in which the anti-reflection plate extends along the rear surface of the quick return mirror when the latter is in the photographing position, respectively.
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