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.

Date of Patent:
Jan. 10, 2006

Filed:

Feb. 24, 2004
Applicants:

Brecht Halsberghe, Kuurne, BE;

Bart Van Den Bossche, Kuurne, BE;

Cindy Van DE Velde, Sint-Amandsberg, BE;

Jan Leo Arteel, Kortrijk, BE;

Inventors:

Brecht Halsberghe, Kuurne, BE;

Bart Van Den Bossche, Kuurne, BE;

Cindy Van De Velde, Sint-Amandsberg, BE;

Jan Leo Arteel, Kortrijk, BE;

Assignee:

Barco N.V., Kortrijk, BE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/00 (2006.01); G03B 21/28 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract

A convergence systemcomprises a dichroic prismfor splitting and/or recombining light beams, intermediate partsand a light modulatorfor every color beam. The intermediate partsare constructed such that the convergence system has an improved resistance for variations in environmental effects like temperature and humidity. The intermediate partsare constructed such that the convergence system has a high stability, a large degree of monolithicy and a high movement isotropy. When used in a projection display system, the projection display system has a high degree of color uniformity.


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