Optical tape focal plane stabilizer
US5459708A · kind A · utility
10Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1993 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | Dec 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tape stabilizer for stabilizing the focal plane area of an optical tape includes two radius contours adjacent to one another. As an optical tape passes across the stabilizer, an air bearing layer is formed. The air bearing layer suspends the tape above an apex of each contour and forms a stable tape surface between the apexes. It is at this stable tape surface that read and write operations can accurately be performed. An objective lens can be provided to focus a beam of light onto the tape for read and write operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.