Thermally stable flexible lighting device
US10711956B2 · kind B2 · utility
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12Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device comprises at least one LED element for emitting light into an emission direction. A bendable light guide is arranged to guide light emitted from the LED element. The bendable light guide comprises at least a first portion formed of an elastic, light transmitting light guide material covering at least the emission direction of the LED element, and a second portion formed of an elastic, light transmitting light guide material. In order to be able to function under varying environmental conditions, the second portion is arranged spaced from the first portion in the emission direction by a separation space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.