专利名称：Spectrometer with cylindrical lens for
astigmatism correction and demagnification
发明人：Delmas, Rémy,Baratange, François申请号：EP12172493.4申请日：20081017公开号：EP2518459A1公开日：20121031
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：Horiba Jobin Yvon Inc
地址：3880 Park Avenue Edison, NJ 08820 US
国籍：US
代理机构：Coralis Harle
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