The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2017
Filed:
Dec. 19, 2012
Osram Gmbh, Munich, DE;
Juergen Mueller, Berlin, DE;
Norbert Magg, Berlin, DE;
OSRAM GmbH, Munich, DE;
Abstract
Various embodiments relates to a DLP (digital light processing) projector for projecting at least one image on a projection surface. A discharge lamp is driven by a current waveform having at least one first region, to which a first frequency is assigned, and a second region, to which a second frequency is assigned, wherein the first region is established by a first commutation and a following second commutation, wherein the second region is established by the region between the second commutation and a following first commutation, wherein further commutations can occur within the second region, wherein a modulation factor is defined by the ratio of second frequency to first frequency, wherein the modulation factor is at least 3. A method for projecting at least one image is also disclosed.