| 摘要 |
PROBLEM TO BE SOLVED: To prevent a fault due to discharge of static electricity, or the like by surely grounding a contact for ground of a camera body. SOLUTION: A lens unit 4 is freely attachable to and detachable from a body-side mount part 11 of a camera body 3. The body-side mount part 11 includes a base part 58, bayonet claws 12a to 12c, a mount barrier 14, a body-side ground contact 61, a supporting member 62, and a ground connection member 63, and an energizing spring 15. The mount barrier 14 has the body-side ground contact 61 attached thereto and is freely moved between a closing position for closing an opening 58a of the base part 58 and a retreat position for retreating from the closing position. The ground connection member 63 is connected to a ground pattern of a main substrate 75. The energizing spring 15 is always slid with the body-side ground contact 61 and the ground connection member 63. When the mount barrier 14 is moved to the retreat position, the body-side ground contact 61 and the ground connection member 63 are brought into contact with each other. COPYRIGHT: (C)2008,JPO&INPIT |
