Light collecting and emitting apparatus, method, and applications
US9246038B2 · kind B2 · utility
5Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Nov 25, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/52
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guide apparatus includes a light guide layer and an injection layer further including light injection elements and respective light bypass elements disposed optically upstream of the light injection elements. The light injection elements and/or the bypass elements may take the form of air prisms. There is an axial index of refraction variation between the light guide layer and the injection layer. The axial index of refraction variation may be discrete or may be an axial gradient index variation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.