Patent · US Active

Backlighting arrangement with semiconductor light sources arranged in light groups and lighting device

US7740365B2 · kind B2 · utility

31Cited by

5References

20Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Josef Huttner · Regensburg, DE
Hubert Ott · Bad Abbach, DE
Mario Wanninger · Regensburg, DE

Key dates

Filing date	Sep 4, 2006
Grant date	Jun 22, 2010
Priority date	—
Expiry date	Sep 27, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/133613
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

This invention relates to uniform backlighting of surfaces by semiconductor light sources. Various semiconductor light sources are combined into identical illumination groups. These identical illumination groups are arranged so that uniform backlighting of a surface is made possible. For homogeneous color mixing to be achieved, especially at edges, each illumination group in the arrangement has at least one adjacent illumination group in a different orientation.

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