Lens cleaner and optical disc device
US8488421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2012 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Nov 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/121
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lens cleaner capable of more surely cleaning grime off from an objective lens is provided. A lens cleaner of the present invention includes first and second lens cleaning portions. The first lens cleaning portion is provided to be brought into contact with a lens protector when the lens cleaner is rotated, to cause an objective lens to be away from a recording or reproducing position against an elastic force of an elastic member. The second lens cleaning portion is provided on an upstream side in a rotation direction relative to the first lens cleaning portion. The second lens cleaning portion is provided to pass above the lens protector while the objective lens is away from the recording or reproducing position, and to be brought into contact with the objective lens when the objective lens returns to the recording or reproducing position by the elastic force of the elastic member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.