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专利名称：Spectrometer with cylindrical lens for
astigmatism correction and demagnification
发明人：Remy Delmas,Francois Barantange申请号：US11975052申请日：20071017
公开号：US20090103088A1公开日：20090423
专利附图：
摘要：A spectrometer which in one embodiment including a dispersive element and aconcave element. The dispersive element may be a flat or concave grating which receiveslight and reflects the light in different collimated wavelengths. The concave element
being located downstream from the dispersive element and arranged to reflect andfocus the light toward a detector. The reflected light from the concave element includingastigmatism. A cylindrical lens positioned between the concave element and the detectorand configured to simultaneously correct the astigmatism and demagnify the light acrossthe detector. In one embodiment the cylindrical lens varies in thickness progressivelyalong its length.
申请人：Remy Delmas,Francois Barantange
地址：Mennecy FR,Edison NJ US
国籍：FR,US
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