Light pipe assembly
US7389020B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Jan 30, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light pipe assembly providing a light pipe that has at least one transmission region, at least one light source that is optically connected to the transmission region, and an modifying element. The modifying element creates the appearance of even light distribution throughout the length of the light pipe. Thus, the modifying element blocks more light at the portion of the light pipe where the light from the light source is most intense. The modifying element is a gradient on the exterior side of the light pipe, a gradient on a secondary element that covers the light pipe, or a skin which the light pipe is at least partially imbedded in.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.