Patent · US Active

Lighting device with optoelectronic light source

US9784428B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Krister Bergenek · Regensburg, DE
Florian Boesl · Regensburg, DE
Andreas Dobner · Wenzenbach, DE
Katrin Kondula · Regensburg, DE
Reiner Windisch · Nittendorf, DE
Dennis Sprenger · Schlangen, DE
Meik Weckbecker · Thalmässing, DE

Key dates

Filing date	Jul 8, 2015
Grant date	Oct 10, 2017
Priority date	—
Expiry date	Feb 4, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Various embodiments relate to a lighting device with an optoelectronic light source, an optical body downstream thereof for distributing the light, and a diffuser downstream of the latter, onto the light entry surface of which the light emitted by the optical body falls and the light exit surface of which represents a light emission surface of the lighting device. To homogenize the luminous intensity on the light exit surface, in addition to distributing the light with the optical body, the diffuser is not provided to be uniformly scattering to such an extent that light falling thereon in a central region is scattered more intensely than light falling thereon in an edge region.

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