Patent · US Active

LED illumination system

US7780317B2 · kind B2 · utility

12Cited by

6References

19Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Katrin Schroll · Matzing, DE
Allessandro Scordino · Mestre, IT

Key dates

Filing date	Nov 26, 2007
Grant date	Aug 24, 2010
Priority date	—
Expiry date	Nov 26, 2027

Classification

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

Abstract

An LED illumination system comprising an LED light source (3) which emits light (8) in a main direction (9) and a first optical element (1), a second optical element (2) is arranged downstream of the first optical element (1) in the main direction (9), and the second optical element (2) has on a light entrance surface (6) which faces the LED light source (3) a surface structure (4) that comprises a plurality of pillow-shaped prominences (5).

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