LIGHT SHIELDING UNIT AND LENS BARREL INCLUDING SAME

Abstract: a light shielding unit includes: a plurality of diaphragm blades; a base member that rotatably supports each of the plurality of diaphragm blades; a cover member that is attached to the base member and defines a blade chamber that stores the plurality of diaphragm blades in cooperation with the base member; and an annular first sheet that is disposed between the base member and the plurality of diaphragm blades in the blade chamber and on which the plurality of diaphragm blades slide. the base member includes a through hole communicating with the blade chamber, and the first sheet covers the through hole.

Inventor(s): Shuhei AYUKAWA

CPC Classification: G02B5/005 (Optical elements other than lenses (light guides ; optical logic elements ))

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