Illumination systems with sloped transmission spectrum front reflector
US9441809B2 · kind B2 · utility
6Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2012 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Aug 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0031
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight (10) includes a front and back reflectors (12,14) forming a light recycling cavity (16) and one or more light source members (24a, 24b, 24c) disposed to emit light into the light recycling cavity. The front reflector (12) being partially reflective to provide an output illumination area. The front reflector (12) has a blue sloped transmission spectra, at normal incidence with a range among bin values from 15% to 100%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.