Patent ID: 8218251
Filing Date: 2012-07-10
Classification: G02B

Abstract:
1. A lens barrel comprising: a drive ring having a hollow cylindrical shape and configured to rotate around an optical axis; a lens holder configured to move in an optical axis direction relative to the drive ring, the lens holder including a body located inside of the drive ring and configured to hold a lens, and an arm extending to outside of the drive ring; a base member configured to hold the lens holder; a first shaft fixed onto the base member and engaged with the arm of the lens holder and configured to guide a movement of the lens holder in the optical axis direction; a first motor configured to drive the lens holder along the first shaft; and a second motor configured to rotate the drive ring, wherein the drive ring has a notch, and the arm of the lens holder is configured to move through the notch in the optical axis direction by driving the first motor.