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    • 9. 发明授权
    • Method of producing anisotropic optical element
    • 制造各向异性光学元件的方法
    • US07595099B2
    • 2009-09-29
    • US11372261
    • 2006-03-10
    • Masanori UmeyaHiroyuki NishimuraTakanori AonoTakuya Yamazaki
    • Masanori UmeyaHiroyuki NishimuraTakanori AonoTakuya Yamazaki
    • C09K19/00C09K19/06C09K19/52
    • C09K19/02C09K19/38C09K2019/0448C09K2219/03Y10T428/10Y10T428/1036
    • The present invention provides a method of producing simply and precisely an anisotropic optical element having optical properties that are anisotropic with respect to a direction of a normal to an element plane. After forming an uncured film by applying flatwise a radiation-polymerizable cholesteric liquid crystal to a substrate (step 101), the film is heated to convert the cholesteric phase of the liquid crystal in the film into an isotropic phase (step 102). Thereafter, the isotropic phase of the liquid crystal in the film is converted into the cholesteric phase thereof, with a gas blown on the film from a predetermined direction (step 103). By doing so, the liquid crystal is oriented in such a manner that a mean direction of directions of helical axes (a main direction of helical axes) in liquid crystal domains in the film is tilted, relative to a direction of a normal to a film plane, along a stream of the gas blown. Lastly, the liquid crystal in the film is polymerized with the phase of the liquid crystal in the film maintained cholesteric (step 104). By this, the above-described state of orientation of the liquid crystal in the film is fixed as it is, and there is produced an anisotropic optical element having optical properties that are anisotropic with respect to the direction of the normal to the element plane.
    • 本发明提供简单且准确地制造各向异性光学元件的方法,所述各向异性光学元件具有相对于元件平面的法线方向是各向异性的光学特性。 通过将可放射线聚合的胆甾型液晶平面地涂布到基板上形成未固化的膜(步骤101)之后,加热膜,将膜中的液晶的胆甾醇相转变为各向同性相(步骤102)。 此后,将薄膜中的液晶的各向同性相转化为胆甾醇相,并从预定方向吹入薄膜上(步骤103)。 通过这样做,液晶被定向成使得膜中的液晶畴中的螺旋轴的方向的平均方向(螺旋轴的主方向)相对于膜的法线方向倾斜 飞机沿着气流吹动。 最后,膜中的液晶与保持胆甾醇的膜中的液晶相聚合(步骤104)。 由此,膜的液晶的上述取向状态是原样固定的,并且产生具有相对于元件平面的法线方向具有各向异性的光学性质的各向异性光学元件。