Lighting apparatus
US6474826B1 · kind B1 · utility
45Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Nov 30, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting apparatus for causing the light from a light source to enter the incident surface of a light guide plate and to project the light toward an object of illumination from the exit surface of the light guide plate extending in the direction perpendicular to the incident surface. The light source is made by placing a light-emitting diode on or near the light source rod extending in the longitudinal direction parallel to the incident surface of the light guide plate. The light source rod and the light guide plate are integrally made by forming a slot in a common plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.