Lens for optical data storage system
US5917788A · kind A · utility
13Cited by
32References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Aug 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/122
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical data storage system includes an optical disc which stores information in optically readable format on a data surface. A slider is provided proximate the data surface of the optical disc and is coupled to an actuator for selectively positioning the slider relative to the data surface. A Solid Immersion Lens couples to the slider and is arranged to couple light to the data surface of the optical disc. The Solid Immersion Lens is non-hemispherical.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.