| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens cap capable of being attached to an attachment screw part of a lens device even in a structure in which operation knobs having the same shape are oppositely assembled into a lens cap body.SOLUTION: A lens cap comprises, with an optical axis as a center, a discoid cap body, and two cap knobs having the same shape which are fitted at two places opposite to the cap body, and which can slide in a radial direction and are energized outward. The lens cap is detachably mounted to a screw part of a lens housing front end part inner peripheral by an engagement shape provided in the cap knobs. The two cap knobs, when fitted at the two place opposite to the discoid cap body, deviates from each other in an optical direction by a half amount of the screw pitch of the inner peripheral screw part of the lens housing front end part.SELECTED DRAWING: Figure 2 |
