Illumination apparatus
US7121679B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2004 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Jan 19, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination apparatus is provided that can achieve light distribution towards the front, and light illumination in a direction other than the front direction, without using a light source other than the light source for frontward illumination. The illumination apparatus includes a light emitting diode located at the front side of the illumination apparatus, corresponding to one end, a side transmission unit having a surface exposed at a gap in the casing, located rearward of the light emitting diode to transmit light from the side, and a light path modification unit, located rearward of the light emitting diode to modify the direction of light output from the light emitting diode towards the side transmission unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.