Patent · US Expired

Solid-state laser system for color picture projection

US5894489A · kind A · utility

21Cited by

4References

18Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Thorsteinn Halldorsson · Munich, DE
Max Koniger · Pullach, DE
Axel Mehnert · Schongau, DE
Peter Peuser · Riemerling, DE
Gunter Reithmeier · Putzbrunn, DE
Nikolaus Schmitt · Heidelberg, DE
Paul Zeller · Munich, DE
Alois Seilmeier · Bayreuth, DE
Heinrich Graener · Bodenwerder, DE

Key dates

Filing date	Nov 17, 1997
Grant date	Apr 13, 1999
Priority date	—
Expiry date	Nov 17, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/39
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A laser system generates read, green and blue beams from a single laser beam generated by an IR continuous-wave laser using rare-earth or transition elements. Semiconductor diodes are used to excite IR continuous-wave laser and simple passive non-linear frequency conversion is used to generate the red, green and blue effective beams.

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