Holographic optical element and method for producing the same
US10534121B2 · kind B2 · utility
2Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Jul 20, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2270/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a means for suppressing an occurrence of a ghost by enhancing diffraction efficiency of a holographic optical element having a volume hologram recording layer. The present invention is a holographic optical element including: a volume hologram recording layer containing a photopolymer; and at least one adjacent layer which is in contact with the volume hologram recording layer and contains a resin, wherein a diffraction grating is formed so as to extend from the volume hologram recording layer to the adjacent layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.