LENS BARREL - OLYMPUS CORP

Title:

LENS BARREL

Document Type and Number:

Japanese Patent JP2019200234

Kind Code:

A

Abstract:

To provide a lens barrel that can remove static electricity generating by a blade member or an oscillation member in the vicinity of the blade member.SOLUTION: In a lens barrel 10 having an air flow passage communicating between an external space and an inner space formed, the lens barrel comprises: a diaphragm unit 1 that is arranged in the inner space, and rotates a plurality of blade members 53 in a prescribed range to form a prescribed opening; optical units 11 and 12 that are arranged in the inner space, and are located on a subject side with respect to the diaphragm unit; and through-holes 52g and 54g that are formed in the diaphragm unit and communicate with the inner space. When at least one of the optical unit and the diaphragm unit moves in an optical axis direction, air included in the inner space, and static electricity included in the air of the inner space and charged in the plurality of blade members are released through the air flow passage and the through-hole.SELECTED DRAWING: Figure 7

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