Patent ID: 7197755
Filing Date: 2007-03-27
Classification: G11B

Abstract:
1. A lens cleaner for an optical disc device, comprising: a cleaning member that is provided on a disc to make contact with an object lens of an optical disc device, in which said disc is not caused to rotate until a focusing operation has been successfully achieved, in order to clean the object lens, wherein an operating member for operating the disc from the outside of the device is installed on said disc; and a focus preventing face is provided on the face of said disc facing the object lens, which prevents focusing by preventing an appropriate reflection of the laser light for performing focusing when the power supply of the optical disc device is on, the focus preventing face is a face on which no signal capable of being a subject of focusing by said object lens is recorded, or a face which does not have any recording layer at all on which a signal could be recorded.