Optical unit for light-emitting structure, light-emitting structure, and light box including the light-emitting structure
US9835313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2014 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Sep 5, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B19/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various embodiments may relate to an optical unit for a light-emitting structure, a light-emitting structure, and a light box comprising the light-emitting structure. The optical unit includes a body and a light-blocking structure, wherein the body includes at least one reflective surface, wherein the light-blocking structure includes a first light-blocking structure and a second light-blocking structure, wherein the first light-blocking structure is formed in one piece with the body, and the second light-blocking structure is arranged in the first light-blocking structure, wherein the first light-blocking structure is arranged to at least partially surround the reflective surface, to block the light leaks from the reflective surface by the second light-blocking structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.