Hologram recording method and hologram recording material
US7588863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2004 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | May 5, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2260/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a hologram recording method capable of satisfying high sensitivity and at the same time, satisfying high diffraction efficiency, good preservability, low shrinkage percentage, dry processing and multiplex recording properties, a hologram recording method comprises a first step of producing a latent image upon holographic exposure, and a second step of causing a polymerization reaction due to the latent image, to form a interference fringe providing a refractive index modulation, wherein the first and second steps are dry process; particularly, the first step is a step of producing a colored material to form the latent image and the second step is a step of causing the polymerization reaction upon irradiating the colored material with a light having a wavelength different from that of the holographic exposure, to form the interference fringe providing the refractive index modulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.