Optical pickup device
US7440385B2 · kind B2 · utility
0Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2005 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Nov 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical pickup device comprises a photodetector for receiving laser light reflected from a disc and a housing in which the photodetector is housed, and the photodetector is directly attached to the housing. Through the use of the optical pickup device, occurrence of positional deviation of the photodetector can be suppressed, even under greatly changing temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.