Light control device exhibiting batwing luminous intensity distributions in upper and lower hemispheres
US8047673B2 · kind B2 · utility
79Cited by
88References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2008 |
| Grant date | Nov 1, 2011 |
| Priority date | — |
| Expiry date | Oct 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light control device implemented as a luminaire exhibits an ultra-wide batwing luminous intensity distribution in an upper hemisphere that provides substantially uniform illumination of a ceiling surface, even when the luminaire is mounted very close to the ceiling. Luminous side panel diffusers facilitate blending the luminaire with the ceiling surface as they create a batwing luminous intensity distribution in a lower hemisphere to evenly illuminate a work plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.