Controlled flaring light transmission device
US8534892B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Nov 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various exemplary embodiments relate to a light transmission device for transmitting light from at least one light source to an illuminated surface. The device may include at least one light entrance surface that allows entrance of light from the at least one light source; a light emitting surface with an area greater than the total area of the at least one light entrance surface; at least one light pipe portion extending from the at least one light entrance surface toward the illuminated surface wherein the light pipe portion internally reflects the light toward the illuminated surface; and a flared diffusion portion between the at least one light pipe portion and the light emitting surface wherein the diffusion portion internally reflects the light towards the light emitting surface. The device may be a solid piece of plastic. The light pipe portions may be curved to bend light toward the illuminated surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.