Automotive lighting unit with a light guide plate
US10859230B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2017 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2105/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Automotive lighting unit comprising a first lighting assembly able to backlight a transparent or semi-transparent portion of the front half-shell; the lighting assembly comprising: at least one light-guide plate made of photoconductive material, which is arranged inside the rear casing with a front sidewall of the plate facing the transparent or semi-transparent portion, and with a rear sidewall of the plate facing the rear casing; a first oblong light source which is located inside the rear casing at a first segment of the rear sidewall, and is capable of directing the light produced inside the light-guide plate so that the light travels inside the body of the light-guide plate towards the front sidewall; and a second light source which is located inside the rear casing at a second segment of the rear sidewall complementary to the first segment, and is capable of directing the light produced inside the light-guide plate, so that this light travels inside the body of the light-guide plate towards a first lateral sidewall of the light-guide plate connecting the second segment of the rear sidewall of the light-guide plate to the front sidewall of the same light-guide plate. The light…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.