Hot spot reduction in segmented flexible light guides
US11175445B2 · kind B2 · utility
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2References
22Claims
0Family size
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Key dates
| Filing date | Jan 29, 2019 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | Jan 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Illuminating sections of a light guide with LEDs leads to unwanted light bleeding to other parts of the light guide. Furthermore typically LEDs are placed at a large distance from the area that couples out light from this LED due to a spike in intensity close to the LED. In order to avoid this spike being visible in the lit area the distance is increased which results in unwanted areal increase of the overall system. The present provides a layout to overcome these challenges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.