ND FILTER
    31.
    发明申请
    ND FILTER 失效
    ND过滤器

    公开(公告)号:US20070183069A1

    公开(公告)日:2007-08-09

    申请号:US11669499

    申请日:2007-01-31

    IPC分类号: G02B5/22

    CPC分类号: G02B5/205

    摘要: Provided is an ND filter including an alternating layer which is composed of two films being alternately stacked and formed on a transparent substrate, the two films having different refractive indexes, wherein the alternating layer has a substrate-side reflected light attenuating multi-layered film and a transmittance adjusting multi-layered film formed on the transparent substrate in the stated order from the transparent substrate side, and the light absorption amount of the substrate-side reflected light attenuating multi-layered film is set to be 20% or more and 30% or less. Thus, an ND filter having satisfactory front surface reflection characteristics and rear surface reflection characteristics can be stably obtained while the transmittance of 4% or more and 11% or less is maintained with respect to the entire visible region (400 nm or more and 700 nm or less).

    摘要翻译: 提供了一种ND滤光器,其包括交替层叠并交替堆叠并形成在透明基板上的交替层,所述两个膜具有不同的折射率,其中交替层具有基板侧反射光衰减多层膜和 从透明基板侧按顺序形成在透明基板上的透光率调节多层膜,将基板侧反射光衰减性多层膜的光吸收量设定为20%以上30%以下, 或更少。 因此,可以稳定地获得具有令人满意的正面反射特性和后表面反射特性的ND滤光片,而相对于整个可视区域(400nm以上至700nm),保持4%以上且11%以下的透射率 或更少)。

    Pelletized activated carbon and production method for the same
    32.
    发明申请
    Pelletized activated carbon and production method for the same 审中-公开
    造粒活性炭和生产方法相同

    公开(公告)号:US20060154815A1

    公开(公告)日:2006-07-13

    申请号:US11033317

    申请日:2005-01-12

    IPC分类号: C01B31/14

    摘要: To provide useful general-purpose pelletized activated carbon and an industrially advantageous production method for pelletized activated carbon. The above-mentioned object is achieved by pelletized activated carbon that is pelletized by using, as binders, at least one kind of binder selected from a group (A group) consisting of acrylic emulsions and acryl-styrene-based emulsions and at least one kind of binder selected from a group (B group) consisting of cellulose ether and polyvinyl alcohol-based polymers, and a production method for the same.

    摘要翻译: 提供有用的通用颗粒活性炭和工业上有利的颗粒活性炭生产方法。 上述目的是通过使用作为粘合剂的至少一种选自由丙烯酸乳液和丙烯酸 - 苯乙烯基乳液组成的组(A组)中的至少一种粘合剂和至少一种 的选自由纤维素醚和聚乙烯醇系聚合物构成的组(B组)的粘合剂及其制造方法。