Light emitting sign apparatus using optical fiber
US10526757B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2018 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jun 26, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light emitting sign apparatus using an optical fiber includes: a front panel including a plurality of emission holes; a plurality of optical fibers having one ends respectively connected to the plurality of emission holes and the other ends constituting a concentrated bundle; and a light source assembly including a plurality of light emitting diodes optically coupled to the other ends of the plurality of optical fibers, wherein the plurality of light emitting diodes are located on a plane. Each of the plurality of light emitting diodes belongs to any one of a plurality of groups, one ends of the plurality of groups are connected to the same node, and different power voltages are applied to the other ends of the plurality of groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.