Optical pickup lens cleaning device for double-sided disk player
US5995466A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1993 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Mar 25, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical pickup lens cleaning device for a double-sided disk player for recording desired signals on each side of the double-sided disk or reproducing the desired signals therefrom. The cleaning device includes an optical pickup assembly having first and second lateral rack gears, and a semi-circular rack gear connected to the corresponding ends of the first and second rack gears. The first and second rack gears are spaced at a predetermined distance so that the disk can be disposed therebetween and are disposed on a frame together with the semi-circular rack gear in a continuous manner. The optical pickup assembly is movable along the rack gears so as to be moveable from one side of the disk to the opposite side thereof. A lens cleaning mechanism is disposed at a center of an arc of the semi-circular rack for cleaning a lens to be mounted on a base of the optical pickup assembly when the assembly is moved from the one side of the disk to the opposite side. Therefore, the lens in the pickup assembly is automatically cleaned during normal operation without the need for a separate lens cleaning device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.