Information recording and reproducing apparatus
US6631227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2001 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jul 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording and reproducing apparatus for at least one of recording and reproducing information on a recording medium utilizing near-field light has a suspension arm and a near-field light head mounted on the suspension arm. The near-field light head has a minute aperture, an optical waveguide for propagating light from a light source, and a reflection film for reflecting the light propagated by the optical waveguide and for irradiating the reflected light to the minute aperture to generate near-field light at the minute aperture for interaction with a recording medium. A light guiding structure guides light from the light source to the optical waveguide of the near-field light head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.