Lens support mechanism, optical head device and optical information processor
US7123553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2003 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Sep 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lens support mechanism including a semiconductor laser 10 for emitting a laser beam, an optical head enclosure 3 to which the semiconductor Laser 10 is fixed and located, a collimator lens 21 disposed coaxially with the laser beam emitted from the semiconductor laser 10, a resin cylinder 22 formed in a cylindrical shape so as to fix and locate the collimator lens 21 to the inner surface thereof and a cylindrical member 23 fitted to the resin cylinder 22 on a side of the collimator lens 21 opposite to the semiconductor laser 10 and formed so as to be fixed to the optical head enclosure 3. The cylindrical member 23 has almost the same linear expansion coefficient as that of the optical head enclosure 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.