Adapting drive current for emitters based on characteristics of a cover
US12017578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | May 18, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An automobile rear lighting includes a first emitter that emits a first light through a cover and a second emitter that emits a second light, different from the first light, through the cover such that an output light including the first light and the second light is emitted through the cover. The automobile rear lighting also includes a driving apparatus. The driving apparatus provides a first driving current to the first emitter and a second driving current to the second emitter. The driving apparatus adapts a magnitude of the first driving current and the second driving current based on at least one of at least one property of the cover or at least one optical component of the automobile rear lighting and a pre-defined color coordinates specification for the output light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.