Light assembly having a ring-shaped lightguide with a plurality of light incident portions
US10754075B1 · kind B1 · utility
2Cited by
13References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2019 |
| Grant date | Aug 25, 2020 |
| Priority date | — |
| Expiry date | Apr 9, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An indicator light assembly includes a lightguide with a plurality of light directing optical devices each having a light receiving end, a sidewall, and a light emitting end coupled to each other to form a ring-shaped light exit surface; and a plurality of light sources positioned at the light receiving ends, such that light from the light sources enters the light receiving ends and is directed towards the light exit surface by the sidewalls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.