| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel for an interchangeable lens capable of stably securing permeability. SOLUTION: The lens barrel is provided with: a lens barrel main body with a waterproof function (1st frame member 100 and 2nd frame member 200); a frame member (rear cover member 260 etc.) attached to the lens barrel main body; an opening part 261b arranged in a part of the frame member (circumferential wall of rear cover member 260 etc.) so as to ventilate between the inside and outside of the lens barrel main body; and a water-repellant sheet 262 attached so as to cover the opening part 261b (from inside or outside) so as to allow the air to pass through the opening part 261b and so as to repel water drops. COPYRIGHT: (C)2005,JPO&NCIPI
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