| 摘要 |
PROBLEM TO BE SOLVED: To prevent a lens unit from being separated from a camera body, in a power supply start-up state or in a specified operation state. SOLUTION: A body-side mount part 14 comprises a mount ring member 41, bayonet claws 42a to 42c, the mount body 43, a barrier member 44 and a coil spring 46. The mount body 43 is formed, by fixing a contact pin and a relay substrate 55 on a base member 51. A locking mechanism 47, equipped with a lock pin 69, a lock release button 70, a stopper 73 and a solenoid 74, is assembled on the relay substrate 55. When power is supplied and the start-up state is set, the stopper 73 holds the lock pin 69 in a lock state with the drive of the solenoid 74; and when power supply is stopped, the stopper 73 moves and permits release of the lock. COPYRIGHT: (C)2008,JPO&INPIT
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