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:
Mar. 29, 2005
Filed:
May. 21, 2003
Wolfgang Sievers, Kremperheide, DE;
Wolfgang Sievers, Kremperheide, DE;
Esko-Graphics A/S, Ballerup, DK;
Abstract
An imaging apparatus includes a laser to generate a single-mode laser beam of energy, a multichannel spatial light modulator (SLM) accepting a plurality of modulating signals, and a beam multiplier between the radiation source and the SLM. The multiplier accepts the beam and generates from that beam a plurality of beams directed onto the SLM. The beams from the beam multiplier illuminate the active region of the SLM such that the SLM generates a plurality of modulated beams modulated according to the modulating signals. An optical subsystem is located between the SLM and an imaging plane including at least one optical element focusing the modulated beams onto the plane on which recording medium is placed to permanently mark the recording medium in response to incidence of such imaging radiation. Each beam from the SLM is substantially single-mode such that the optical subsystem can be designed using diffraction-limited optics.