Holographic storage media package
US5526337A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0065
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A package for a holographic storage media disk (10) is provided that is comprised of a super structure (18) that is operable to hold the disk (10). The disk (10) is comprised of a photopolymer material that is formed in a disk-shaped member having a hub (14) disposed at the center thereof. The disk (10) is disposed in the structure (18) and then a cover (24) disposed thereover, the cover (24) being opaque. An access opening (28) is disposed within the cover (24) to allow access to the surface of the disk (10). A hub opening (26) is provided for allowing access to the hub (14). The hub (14) is disposed such that there is a light tight seal relative to the cover (24). A door (32) is provided for reciprocating over the opening (28) to light seal the package when data is not being recorded to the disk (10) or read therefrom. Additionally, layers of felt (161) and (163) are disposed on the interior surfaces of the cover to dampen any vibrations in the package, and a fiduciary marking opening (30) is provided for allowing access to fiduciary markings (164) disposed on the edge of the disk (10). The door (32) is operable to lock when in a portable mode and unlock when in an access mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.