Optical pick-up device of disk player
US6633519B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2001 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Oct 18, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0933
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical pick-up device includes: a yoke plate having yokes formed at a front side where a magnetic body and a magnetic driving coil are positioned to drive an objective lens; a frame molded to the yoke plate in such a manner that a portion of the rear side of the yoke plate is inserted thereinto; and a PCB with at least two portions fixed to the frame, for applying a drive signal to the magnetic driving unit. Since the frame is press-fit to the yoke plate and the PCB with several portions coated with the adhesive is fixedly attached to the frame, it is not necessary to use an engaging member such as a screw, so that its assembly can be improved and the frame and the PCB can be prevented from being shaken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.