Patent · US Active

Projection apparatus having improved projection properties, and method and procedure, respectively, for projecting an image

US9039198B2 · kind B2 · utility

4Cited by

8References

16Claims

0Family size

Assignee

OSRAM Gesellschaft mit beschraenkter Haftung · DE

Inventors

Jan Oliver Drumm · Homburg, DE
Henning Rehn · Berlin, DE
Bakuri Lanchava · Regensburg, DE
Wolfgang Pabst · Munich, DE
Robert Kraus · Tustin, US

Key dates

Filing date	Nov 8, 2007
Grant date	May 26, 2015
Priority date	—
Expiry date	Mar 15, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N13/365
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

In a method for projecting an image onto a projection area (10) by at least one first (110) and second (210) beam, in order to create an improved image on the projection area, the deviation of the projection of the first and second beam on the projection area is determined, and the intensity of the first and/or second beam is varied over time according to the previously determined deviations.

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