Diffraction grating and method of making
US5080465A · kind A · utility
50Cited by
3References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1989 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Feb 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A diffraction grating, comprises a plurality of grooves formed by a plurality of first facets having a first set of propagative optical characteristics. All facets are generally positioned with a first orientation. A plurality of second facets have a second set of propagative optical characteristics and are generally positioned with a second orientation. The first facets are oriented to diffract light incident on them. The second facets are oriented and have propagative characteristics which prevent perturbation of the diffracted light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.