Patent ID: 9025257
Filing Date: 2015-05-05
Classification: G02B,Y10T

Abstract:
1. A lens barrel comprising: a first axial guide shaft supported by a reference member; a holding member that holds an optical system, the holding member being movable in an axial direction of the first guide shaft with respect to the reference member; an interlocking member that engages with the holding member, that moves in the axial direction of the first guide shaft while rotating around an optical axis of the optical system, and that drives the holding member to move along the first guide shaft without rotating the holding member, wherein the interlocking member has an engaging section that engages with the holding member, the holding member has an engaged section configured to engage with the engaging section of the interlocking member, one of the engaging section and the engaged section is provided along a circumferential direction, a center of which corresponds to the optical axis of the optical system, and the engaging section engages with the engaged section at a position (i) that, in the axial direction of the first guide shaft, is outside the area in which the first guide shaft extends, and (ii) that is on an extension line of the first guide shaft or between the extension line and an inner surface of the reference member.