Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 4, 2010
Patent Application Number
11351013
Date Filed
February 9, 2006
Patent Primary Examiner
Patent abstract
A multi-colored illumination system including a beam combiner. The beam combiner includes two triangular prisms and a filter for transmitting a first light and reflecting a second light, each light having a different wavelength. The beam combiner combines the transmitted first light and the reflected light to provide a combined beam. The six surfaces of each of the triangular prism of the beam combiner are polished, thereby combining the lights without increasing etendue of the multi-colored illumination system.
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