High efficiency mono-order concave diffraction grating
US9176282B2 · kind B2 · utility
42Cited by
16References
24Claims
0Family size
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Key dates
| Filing date | Oct 5, 2012 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/1861
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A concave diffraction grating for integrated optics is constructed by replacing the reflective metallic part by either multiple thin elements of metal or multiple elements of dielectric material, each partially reflecting the light, and arranged on elliptical fashion in order to distribute the diffraction/reflection of light and provide aberration-free focusing, by combining diffraction condition and Bragg condition of these curved reflectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.