LIGHT SHIELDING UNIT AND LENS BARREL INCLUDING SAME

Abstract: a light shielding unit includes: a plurality of diaphragm blades; a drive ring that rotates to drive the plurality of diaphragm blades; a sensor that detects a rotation angle of the drive ring; a flexible printed board provided with the sensor; a base member that rotatably supports the drive ring, and includes a mounting surface on which the flexible printed board is mounted and a female screw hole; a fixing screw that engages with the female screw hole and fixes a first portion of the flexible printed board provided with the sensor to the mounting surface of the base member; and a sheet member interposed between a head portion of the fixing screw and the first portion of the flexible printed board. the base member includes a locking portion that restricts rotation of the sheet member.

Inventor(s): Shuhei AYUKAWA

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

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