| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide an optical device enabling a user to recognize a state of the optical device without causing upsizing. SOLUTION: The optical device includes an optical element that is driven by an actuator 35, and a control part 36 that makes the optical element collide with a predetermined part of the optical device by detecting the state of the optical device and driving the actuator 35 in accordance with the state thereof. COPYRIGHT: (C)2010,JPO&INPIT
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