Diffractive structure on inclined facets
US6043936A · kind A · utility
68Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Jun 9, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A diffractive structure (100) has a substantially planar substrate (1). A set of facets (2) is formed in or on said substrate (1), the plane or planes in which the facets (2) lie being arranged at a non-zero angle to the plane of the substrate (1). Each facet (2) has a diffraction grating (5) formed thereon. The diffractive structure (100) will produce color over a wide range of viewing and illumination angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.