Remote illumination and light apportionment in appliances
US5836669A · kind A · utility
87Cited by
4References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Jan 17, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0095
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A space at least partly enclosed by an appliance housing can be illuminated by utilizing at least one lamp outside that space and coupling a light pipe system to that lamp so that light can be conducted into the space by a light-transmission system. Within the space light is emitted from one or more light extractors optically coupled to the light-transmission system. The light extractors are in the form of wave guides provided along a surface with formations or the like from which light is emitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.