2D deglaring diffusers increasing axial luminous intensity
US10317583B2 · kind B2 · utility
6Cited by
43References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Sep 7, 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 an array of microprism elements on the first face, with a respective microprism element comprising a plurality of concentric microprisms. The light transmissive structure is configured to receive light from a light source facing the second face and reduce high-angle luminous intensity of the light emerging from the first face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.