Light fixture for externally illuminated sign
US5095415A · kind A · utility
29Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1989 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Oct 30, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light fixture has a housing having an axis and a light source for detecting light into the housing along the housing axis. A first section of the housing occupies a first portion of the housing's perimeter and includes a light guide material. A second section of the housing occupies a second portion of the housing's perimeter and includes light extraction structures and a Fresnel lens for beam shaping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.