Patent · US Active

Semiconductor light source

US10727645B2 · kind B2 · utility

0Cited by

19References

14Claims

0Family size

Assignee

Osram OLED GMBH · DE

Inventors

Bernhard Stojetz · Wiesent, DE
Alfred Lell · Maxhütte-Haidhof, DE
Christoph Eichler · Donaustauf, DE
Andreas Löffler · Neutraubling, DE

Key dates

Filing date	Mar 13, 2017
Grant date	Jul 28, 2020
Priority date	—
Expiry date	Mar 13, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/8515
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A semiconductor light source is disclosed. In one embodiment, a semiconductor light source includes at least one semiconductor laser for generating a primary radiation and at least one conversion element for generating a longer-wave visible secondary radiation from the primary radiation, wherein the conversion element for generating the secondary radiation comprises a semiconductor layer sequence having one or more quantum well layers, and wherein, in operation, the primary radiation is irradiated into the semiconductor layer sequence perpendicular to a growth direction thereof, with a tolerance of at most 15°.

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