Patent · US Active

Device with light emitting diodes

US10020294B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

MELEXIS TECHNOLOGIES NV · BE

Inventors

Sebastian Spiegler · Erfurt, DE
Thomas Freitag · Hamburg, DE
Michael S. Bender · Erfurt, DE

Key dates

Filing date	Nov 13, 2017
Grant date	Jul 10, 2018
Priority date	—
Expiry date	Nov 13, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/856
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A multi-LED device comprises a transparent substrate, a plurality of light emitting diodes, LEDs, arranged for emitting light of a plurality of colors and disposed on the transparent substrate, an integrated control circuit in connection with the LEDs and comprising a plurality of photo sensors optically connected to the LEDs. Each photo sensor is provided with a color filter. The integrated circuit is arranged for receiving via the plurality of photo sensors information on a light intensity of the plurality of colors of the LEDs and for regulating the light intensity of the colors of the LEDs based on the information on the light intensity. The transparent substrate with the plurality of LEDs is flip-chip mounted on the integrated control circuit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.