Patent ID: 8351775
Filing Date: 2013-01-08
Classification: G02B,G03B

Abstract:
1. A lens barrel comprising: a drive ring having a hollow cylindrical shape and a gear by which the drive ring is configured to rotate around an optical axis; a lens holder configured to move in an optical axis direction relative to the drive ring and to hold a lens and located inside of the drive ring, the lens holder including an arm extending to outside of the drive ring; a first drive unit configured to rotate the drive ring; a second drive unit configured to move the lens holder in the optical axis; and a guide shaft arranged outside of the drive ring, wherein the lens holder is engaged with the guide shaft via the arm, and adapted to move in the optical axis relative to the drive ring, and wherein the drive ring has a notch that extends in a circumferential direction of the drive ring so that the notch does not overlap the gear in the circumferential direction of the drive ring, and the arm of the lens holder is configured to retreat from the notch of the drive ring in a retraction state and to be able to enter the notch in an image pickup state.