Patent · US Active

Color-tunable illumination system for imaging illumination

US7530710B2 · kind B2 · utility

6Cited by

6References

9Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Dirk Berben · Herdecke, DE
Tim Fiedler · Birkenfeld, DE
Frank Jermann · Königsbrunn, DE

Key dates

Filing date	May 22, 2007
Grant date	May 12, 2009
Priority date	—
Expiry date	May 22, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/30
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A color-tunable illumination system for imaging illumination having a tuning means and at least two light sources of different colors. The illumination system comprises a reflector having a reflector contour, the light sources being accommodated in the vicinity of the reflector contour, and a compact diffusing medium accommodated at the focal point of the reflector. The light from the light sources is directed substantially onto the diffusing medium and then, from there, is diffused onto the reflector contour, electronic driving of the light sources making it possible to regulate the intensity of the light sources separately from one another, with the result that the light leaving the reflector can be color-tuned.

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