发明名称 Optical low-pass filter
摘要 On the light-entering surface side of a base material 10, a coating layer 11 in which a high-refractive layer and a low-refractive layer are sequentially disposed alternately on one on the other is provided for blocking infrared radiation. One of the high-refractive layers is configured by an ITO film 11a so that the conductivity is increased on the surface of the coating layer. Herein, in view of preventing, to a further extent, the attachment of dirt and dust by providing the conductivity to the surface of the coating layer, it is desirable if the outermost high-refractive layer is made of a transparent conductive material. Moreover, it is desirable if the total layer thickness is 140 nm or smaller for the refractive layers formed outside of the high-refractive layer made of the transparent conductive material.
申请公布号 US8437084(B2) 申请公布日期 2013.05.07
申请号 US20070909260 申请日期 2007.01.17
申请人 TSUJIMURA ICHIRO;NOSE MASAAKI;TANAKA YOSHIHARU;KUBO NAOKI;SONY CORPORATION 发明人 TSUJIMURA ICHIRO;NOSE MASAAKI;TANAKA YOSHIHARU;KUBO NAOKI
分类号 G02B1/10;G02B5/28;G02B27/46;H04N5/225;H04N5/335 主分类号 G02B1/10
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