Light device of a motor vehicle
US11047546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Aug 20, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2103/55
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The light device comprises an internal chamber (2) that is covered by a translucent cover, which separates the light device from the external surroundings of the motor vehicle; inside the chamber, there is at least one lighting unit (3) whose active area (4) for the exit of light rays (10) from the lighting unit (3) is situated opposite the translucent cover and contains a light-conductive core (15) of an optically transparent material with an associated light unit (7) located opposite the entry area (9) of the light-conductive core (15) to emit light rays (10) into the body (14) of light-conductive core (15). Between the light-conductive core (15) and the translucent cover there is a functional layer (23) configured to focus the beams of light rays (10) that exit its surface averted from the light-conductive core (15) in a predetermined direction. The light device comprises a technological layer (24) that is configured for a total reflection of the light rays (10), which is in contact with the top surface (17) of the light-conductive core (15).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.