Shaping reflective material for controlling lighting uniformity
US9316779B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2013 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Jun 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In some examples, a lighting apparatus includes a light guiding component having a reflective material disposed on at least one surface. The reflective material may be shaped to have desired light reflecting and/or diffusing properties to provide a more uniform light distribution, such as for lighting an electronic display or other surface. In some cases, the reflective material may be a white tape having a reflective light-diffusing surface. The light reflecting material may be cut or otherwise shaped to provide the desired light reflecting and/or diffusing properties. As one example, the amount of the reflective material located over a central axis of light emitted by a light source may be greater than the amount reflective material located between light sources. This disclosure also describes techniques for assembling electronic devices in a component stack to provide enhanced display lighting uniformity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.