Patent · US Active

LED lighting device with homogeneous light intensity and reduced dazzle action

US8523404B2 · kind B2 · utility

2Cited by

3References

9Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Ales Markytan · Regensburg, DE
Christoph Neureuther · Kowloon, CN
Steffen Block · Lich, DE

Key dates

Filing date	Nov 27, 2009
Grant date	Sep 3, 2013
Priority date	—
Expiry date	Nov 27, 2029

Classification

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

Abstract

An illumination device, comprising a basic body (1) having a cutout (5), a reflector (51), which is formed at least by parts of the cutout (5), and at least one optoelectronic semiconductor component (20) arranged in the cutout (5), wherein the semiconductor component (20) has an optical element (3) designed for directing at least part of the electromagnetic radiation emitted by the semiconductor component (20) during operation onto the reflector (51), wherein a radiation exit area (61) of the illumination device is at least twice as large as the sum of the radiation exit areas (44) of the semiconductor components.

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