Light boxes with uniform light distribution
US8419236B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Mar 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2013/222
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Light boxes for uniformly illuminating panels include a frame that supports one or more translucent panels. The light boxes further include a light source positioned within the light box. Example light sources can include fluorescent bulbs, incandescent lights, and/or light-emitting-diodes. In at least one implementation, a manufacturer positions a relatively limited number of light sources aimed and/or positioned in a particular way to uniformly distribute light throughout the light box and evenly across the translucent panels such that there are no shadows, hot spots or other non-uniform light patterns on the translucent panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.