Optical system support and positioning device for use in an optical reading apparatus
US4596448A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1983 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | Dec 8, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0932
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved optical system support and positioning device for use in an optical reading apparatus, for instance, an optical or audio disc reading apparatus, in which the tracking function of the optical system is improved. An electromagnetic positioning structure moves the optical system parallel and perpendicular to the direction of the optical axis of the optical system while the optical system is supported by a support element. The support element includes a pair of cantilevered flexible members, a pair of substantially parallel support members, and an intermediate section joining ends of the flexible members and support members. In accordance with the invention, the distance between fixed ends of the support members is greater than the distance between the free ends thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.