Patent · US Expired

Component comprising a large number of light-emitting-diode chips

US7435997B2 · kind B2 · utility

20Cited by

4References

22Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Karlheinz Arndt · Regensburg, DE
Georg Bogner · Lappersdorf, DE
Herbert Brunner · Sinzing, DE
Gunter Waitl · Regensburg, DE

Key dates

Filing date	Aug 22, 2001
Grant date	Oct 14, 2008
Priority date	—
Expiry date	Jun 5, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/856
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

A device (1) with a number of light emitting diode chips (5) in a reflector (3) is formed in such a way that the direct line of sight between the light emitting diode chips (5) is interrupted by a partition (11). This improves the efficiency of the device (1) substantially.

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