LED tube with light guiding plate arranged in a triangle
US9213133B2 · kind B2 · utility
1Cited by
0References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2013 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jan 25, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED tube includes an envelope, three light guiding plates received in the envelope, three LEDs mounted on the light guiding plates, and two covers fixed to two opposite ends of the envelope. The three light guiding plates each have an end face confronting a corresponding LED, an inner face having a plurality of dots formed thereon and an outer face opposite to the inner face. Light emitted by each LED is diffused by the dots of a corresponding light guiding plate to radiate outside uniformly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.