Patent ID: 6122116
Filing Date: 2000-09-19
Classification: G02B

Abstract:
A zoom lens barrel, comprising:a stationary lens barrel which is hollow and rectangular in cross section perpendicular to an optical axis;a first movable lens barrel which is hollow and rectangular in cross section perpendicular to the optical axis, and which slidably moves inside the stationary lens barrel in a direction of the optical axis; anda second movable lens barrel which is hollow and circular in cross section perpendicular to the optical axis, and which slidably moves inside the first movable lens barrel during a zooming operation,wherein the zoom lens barrel can take a projecting state and a retracting state, andwherein at least one electric component is positioned inside the first movable lens barrel, and wherein the at least one electric component is positioned in a space outside the second movable lens barrel when the zoom lens barrel is in the retracting state.