Molded reflective structures for light-emitting diodes
US8480254B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2011 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Sep 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8511
Abstract
The present disclosure is directed to a molded reflective structure for a light source, which may be a light-emitting diode (“LED”). The structure includes a reflector which defines a cavity therein. The cavity is surrounded by at least one reflective side wall, and has a greatest dimension of less than about 50 mm. The at least one reflective side wall further has an initial reflectance at 460 nm of greater than about 85% and an initial whiteness index of greater than about 80. The reflector is made from a thermoplastic polymer composition that contains a material such that the at least one reflective side wall absorbs light in the ultraviolet and violet region of the electromagnetic spectrum and re-emits light in the blue region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.