Controlling display lighting color and uniformity
US9690036B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2013 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Feb 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/003
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In some examples, a lighting apparatus includes a light guiding component having a light absorbing material disposed on at least one surface. The light absorbing material may be selected to have light absorbing properties to compensate for variations in the color of portions of light emitted by a light source. For instance, the color of the light absorbing material may be generally complimentary to an undesirable color of a portion of the emitted light. Consequently, by reflecting the portion of light off the light absorbing material, the undesirable color may be absorbed from the portion of the light so that the resulting light is of a more uniform color. 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.