Microstructure-based optical diffusers for creating batwing and other lighting patterns
US10072816B2 · kind B2 · utility
14Cited by
78References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2014 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Oct 15, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light transmissive structure includes a light transmissive substrate having first and second opposing faces and array of microprism elements on the first face, with a respective microprism element including a plurality of concentric microprisms. The light transmissive structure is configured to receive light from a light source facing the first face and distribute the light emerging from the second face in a 2D batwing distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.