Optoelectronic device and adaptive illumination system using the same
US10285236B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2018 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Apr 9, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automotive headlight is disclosed including: an optical unit including a plurality of optical elements, each optical element having a different central direction; a segmented light-emitting diode (LED) chip including a plurality of LEDs that are separated by trenches formed on the segmented LED chip and arranged in a plurality of sections, each section being aligned with a different respective optical element, and each section including at least one first LED and at least one second LED; and a controller configured to: apply a forward bias to each of the first LEDs, apply a reverse bias to each of the second LEDs, and change a brightness of the first LEDs in any section based on a signal generated by the second LED in that section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.