Patent · US Active

Semiconductor-based lighting device

US10813185B2 · kind B2 · utility

0Cited by

6References

21Claims

0Family size

Assignee

Schott AG · DE

Inventors

Bernd Wölfing · Mainz, DE
Thomas Reichert · Brande-Hörnerkirchen, DE
Achim Weil · Immesheim, DE
Andreas Jurk · Monsheim, DE
Björn Bleisinger · Riesweiler, DE

Key dates

Filing date	Apr 9, 2019
Grant date	Oct 20, 2020
Priority date	—
Expiry date	Apr 9, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting device is provided that has a light source arrangement with a plurality of semiconductor-based light sources in the form of light-emitting diodes. The light sources are bundled or collimated such that they each emit light in differently directed light cones with adjacent light cones overlapping. The lighting device has an adjusting device for adjustment of the direction of illumination and an actuating circuit connected to the adjusting device. The adjusting device adjusts intermediate stages for which the light-emitting diodes of adjacent and overlapping light cones operate and with varying light intensity in such a way the focal point of the light field produced by the light-emitting diodes lies between the focal points of adjacent light cones.

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