发明名称 OPTICAL LOW PASS FILTER
摘要 The present invention relates to a low pass filter including a wave plate capable of modulating incident light serving as image information such that A-polarized light and B-polarized light orthogonal to the A-polarized light are at an equivalent light quantity level over a visible light region, i.e., a transmittance takes a value close to 50%. According to the low pass filter of the present invention, it is possible to appropriately reduce a moiré phenomenon generated by an image sensor constituting the optical low pass filter including the above-described wave plate, and suppress degradation of an image quality caused by light quantity deflection of a separated light beam, and the low pass filter of the present invention is therefore useful.
申请公布号 US2011149386(A1) 申请公布日期 2011.06.23
申请号 US201113034729 申请日期 2011.02.25
申请人 ASAHI GLASS COMPANY, LIMITED 发明人 YABUMOTO HIROTOSHI;MURATA KOICHI
分类号 G02B5/30;G02B27/28 主分类号 G02B5/30
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