Patent · US Active

Surface light source

US9461218B2 · kind B2 · utility

6Cited by

2References

13Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Stefan Illek · Donaustauf, DE
Matthias Sabathil · Regensburg, DE
Alexander Linkov · Regensburg, DE
Thomas Bleicher · Montreuil, FR
Norwin von Malm · Nittendorf, DE
Wolfgang Mönch · Pentling, DE

Key dates

Filing date	Feb 20, 2013
Grant date	Oct 4, 2016
Priority date	—
Expiry date	Feb 20, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/882
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In at least one embodiment, a surface light source includes one or a more optoelectronic semiconductor chips having a radiation main side for generating a primary radiation. A scattering body is disposed downstream of the radiation main side along a main emission direction of the semiconductor chips. The scatting body is designed for scattering the primary radiation. A main emission direction of the scattering body is oriented obliquely with respect to the main emission direction of the semiconductor chip.

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