LED illuminating device and lighting apparatus employing the same
US6601984B2 · kind B2 · utility
64Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2002 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Feb 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED illuminating device that includes a light-guiding member formed of a translucent material; an LED element formed of at least one diode disposed on one end of the light-guiding member for emitting light therein; a light-emitting region along the length of the light-guiding member; and a plurality of grooves having a rectangular cross-section and formed in the circumferential surface of the light-guiding member at appropriate intervals in the axial direction. The present invention also provides an LED illuminating appliance of various configurations that employ the LED illuminating device as a light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.