Patent ID: 7639437
Filing Date: 2009-12-29
Classification: G02B

Abstract:
1. A lens driving system configured to be mounted on a lens device comprising a variable power lens moving mechanism that moves a variable power lens group, a focus lens moving mechanism for moving a focus lens group, and a certain drive section to which operation power is supplied from a camera device, the lens drive system comprising: a variable power lens driving section that is connected to the variable power lens moving mechanism and moves the variable power lens group in an optical axis direction; a focus lens driving section that is connected to the focus lens driving mechanism and moves the focus lens group in the optical axis direction; a receiving section that receives an operation signal for remotely operating the variable power lens driving section and the focus lens driving section; a control section that generates a control signal for controlling the variable power lens driving section and the focus lens driving section, based on the operation signal; and a power section that is charged with at least a part of the operation power supplied to the certain drive section and supplies the charged power to the variable power lens driving section, the focus lens driving section, the receiving section, and the control section as operation power, wherein the variable power lens group and the focus lens group together form a varifocal lens.