Optical layer and light fixture with such an optical layer
US11022271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2016 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Feb 15, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/0231
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical layer made from a light-permeable material includes a surface and an optical microstructure having a plurality of elevations. The elevations of the microstructure protrude from a reference plane, which is parallel to the surface. The elevations of the microstructure each have a flank section which adjoins the reference plane and forms a uniform angle with the reference plane. The uniform angle is in a range from about 10° to about 26° or in a range from about 13° to about 23° or in a range from about 15° to about 20°. The optical layer according to the invention makes it possible for a light fixture to achieve a high light output rate (LOR) at the same time to produce a preferred light distribution curve (LDC).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.