发明名称 OPTICAL LOW-PASS FILTER AND IMAGING EQUIPMENT
摘要 PROBLEM TO BE SOLVED: To provide an optical low-pass filter that can be reduced in size with high accuracy at low costs and has a small haze value, and imaging equipment.SOLUTION: An optical low-pass filter according to the present invention includes a separation element that separates incident light into a plurality of rays of light by using birefringence of a liquid crystal. The separation element has a liquid crystal layer formed by using a liquid crystal that has a relation between the desired maximum separation width [μm] and a refractive index difference that is a difference in refractive index between abnormal light and normal light satisfying the following conditional expression (A1); and a haze value of the separation element is equal to or less than 2.0. Conditional expression (A1): (1.2/separation width)≤refractive index difference.
申请公布号 JP2013257408(A) 申请公布日期 2013.12.26
申请号 JP20120132790 申请日期 2012.06.12
申请人 ASAHI GLASS CO LTD 发明人 TOUGE YUKIHIRO;KOYANAGI ATSUSHI
分类号 G02F1/13;G02B27/46 主分类号 G02F1/13
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