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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.:

US 11067885 B1

PDFFull Text
Date of Patent:
Jul. 20, 2021

Filed:

Apr. 04, 2014

Laser projection illumination system

Applicant:

Barco NV, Kortrijk, BE;

Inventors:

Wouter D'Oosterlinck, Eeklo, BE;

Peter Janssens, Nazareth, BE;

Nico Coulier, Machelen, BE;

Assignee:

BARCO NV, Kortrijk, BE;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Jerry L Brooks

Int. Cl.
CPC ...
G03B 33/12 (2006.01); G02B 27/48 (2006.01); G03B 21/20 (2006.01); G02B 27/28 (2006.01); G02B 27/14 (2006.01); G02B 27/09 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G03B 33/12 (2013.01); G02B 27/0905 (2013.01); G02B 27/0922 (2013.01); G02B 27/14 (2013.01); G02B 27/283 (2013.01); G02B 27/48 (2013.01); G03B 21/208 (2013.01); G03B 21/2013 (2013.01); G03B 21/2033 (2013.01); G03B 21/2066 (2013.01); G03B 21/2073 (2013.01); H04N 9/3161 (2013.01);
Abstract

A light beam projecting arrangement including a first cluster of light sources arranged to provide a first cluster of light beams having a first etendue and a second cluster of light sources arranged to provide a second cluster of light beams having a second etendue, and means for changing the direction of the first cluster and/or the second cluster of light beams. The light sources are arranged so that the total etendue of the first cluster of light beams is substantially equal to the etendue of the second cluster of light beams; and where the means for changing the direction are arranged so that the clusters of light beams are brought into a combined cluster light beam having substantially the same etendue as the larger one of the first etendue and the second etendue.

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