Optical pick-up feeding device having a regulating member to adjust an orientation of a lead screw thereof
US6192023A · kind A · utility
6Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1997 |
| Grant date | Feb 20, 2001 |
| Priority date | — |
| Expiry date | Dec 31, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/08582
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disc is read by being mounted on a turntable which rotates about a vertical axis, and moving an optical pick-up radially relative to the vertical axis. The optical pick-up is slidably mounted on a horizontal guide shaft and is threadedly mounted on a lead screw which is rotatable about a horizontal axis extending parallel to the guide shaft. A first end of the lead screw is connected to a motor, and the second end is mounted in a holder which is displaceable relative to the base to enable the second end to be displaced horizontally, in order to correct the horizontal orientation of the lead screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.