Holographic recording medium and method of recording a hologram
US8663873B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2012 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Mar 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/245
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Articles for recording a hologram are described. The articles include a holographic recording medium having a transparent polymeric binder and a photoreactive dye dispersed therein. The articles also include a first compound, dispersed in the holographic recording medium or disposed over a first surface of the holographic recording medium from which surface the hologram is viewed, that is transparent to light in the wavelength range to which the photoreactive dye is sensitive and which is capable of being converted to a converted compound that is opaque to light in the wavelength range to which the photoreactive dye is sensitive and transparent to light in a different wavelength range for viewing the hologram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.