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:
Oct. 27, 2015
Filed:
Feb. 27, 2013
Barco N.v., Kortrijk, BE;
Dirk L. A. Maes, Wevelgem, BE;
Rik Defever, Kortrijk, BE;
Bart Henri Johanna Maximus, Oudenaarde, BE;
Barco N.V., Kortrijk, BE;
Abstract
A method and system are presented directed to a light valve projector with a laser-phosphor light converter. The phosphor converter converts excitation light in order to provide light to a light valve projector. The phosphor converter reduces the étendue of laser-phosphor light sources using a light pipe integrator system. The light pipe integrator system includes a light pipe integrator configured to mix the excitation light and reduce the spot size of excitation light entering the system from, e.g., a laser array. The excitation light is imaged onto a phosphor as it exits the light pipe integrator. The phosphor emits fluorescent light, in response to being illuminated by the excitation light, that enters the light pipe integrator. The light pipe integrator reduces the emission angles of the fluorescent light while maintaining the étendue of the fluorescent light. The system and method may include a reflective polarizer to polarize the fluorescent light.