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公开(公告)号：US20190037185A1
公开(公告)日：2019-01-31
申请号：US16072621
申请日：2017-01-26
申请人： BARCO N.V.
发明人： Mihaela TARPAN , Allel CHEDAD , Bart MAXIMUS , Nico COULIER
CPC分类号： H04N9/3182 , C09K11/7774 , G02B27/1006 , G03B21/2013 , G03B21/204 , G03B21/206 , H04N9/3105 , H04N9/3158 , H04N9/3161 , H04N9/3194
摘要： A light projection system for generating an image with three primary colors, each primary color being respectively defined by a first, second and third wavebands. The system includes a first blue laser source emitting a first beam in a fourth waveband, the first blue laser source having a first laser driver, a second blue laser source emitting a second beam having a central wavelength and a fifth waveband, the second blue laser source having a second laser driver, a substrate having a wavelength conversion element for emitting light at a plurality of wavelengths after absorption of a light beam at an excitation wavelength within a fifth waveband of the second blue laser source and a beam combiner for combining the combined first beam and the converted beam, which combination results in a white beam. Dichroic losses can be reduced by using a green phosphor together with red laser assistance.
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公开(公告)号：US20200218142A1
公开(公告)日：2020-07-09
申请号：US16485474
申请日：2018-02-19
申请人： BARCO N.V.
发明人： Arnout VETSUYPENS , Nico COULIER
摘要： A light projection system and method for generating an image with three primary colors having a module of first blue lasers, second lasers and a wavelength conversion element configured to emit light at a plurality of wavelengths after absorption of a light beam from the second lasers at an excitation wavelength, the output of the module being a combined light beam having a pre-defined chromaticity where the projector is calibrated so as to provide the pre-defined chromaticity of the combined beam over at least a range of laser drive current values to correct for non-linear performance of the wavelength conversion element.
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