Hologram recording composition, hologram recording medium, diffraction optical element, and optical device, optical component, and image display device using diffraction optical element
US12094507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2019 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | Apr 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2260/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To provide a hologram recording composition that can further improve diffraction characteristics and transparency of a hologram.The present technology provides a hologram recording composition containing a heteropoly acid, a photopolymerizable monomer, a photopolymerization initiator, and a sensitizing dye having absorption in a visible light region in the presence of an acid. The present technology also provides a hologram recording medium including at least a photocurable resin layer containing a heteropoly acid, a photopolymerizable monomer, a photopolymerization initiator, and a sensitizing dye having absorption in a visible light region in the presence of an acid. Furthermore, the present technology also provides a diffraction optical element using the hologram recording medium. Moreover, the present technology also provides an optical device, an optical component, and an image display device using the diffraction optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.