公开(公告)号：US4688900A

公开(公告)日：1987-08-25

申请号：US776831

申请日：1985-09-17

申请人： Joseph W. Doane ,  Giuseppe Chidichimo ,  Nuno A. P. Vaz

发明人： Joseph W. Doane ,  Giuseppe Chidichimo ,  Nuno A. P. Vaz

IPC分类号： G02F1/13 ,  C09K19/00 ,  C09K19/02 ,  C09K19/54 ,  G02B5/30 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/137 ,  G09F9/35

CPC分类号： C09K19/00 ,  C09K19/544 ,  G02B5/3025 ,  G02F1/1334

摘要： A light modulating material consisting of droplets of liquid crystal in a clear or light transmitting, flexible plastic sheet or film, such as a cured epoxy. The light modulating material is prepared by dissolving liquid crystal in an uncured resin and then curing the resin so that droplets of liquid crystal spontaneously form and are uniformly dispersed throughout the sheet or film. The new material shows a reversible, high contrast optical response from an opaque scattering mode to a clear light transmission mode when either the temperature of the material is changed to transform the liquid crystal into the isotropic phase or an electric field is applied across the material. The material is optically responsive to strain, whereby under tension it acts to polarize incident light. Curing the material in the presence of an applied field also causes it to act as an electrically addressable polarizer.

摘要翻译： 由透明或透光的柔性塑料片或薄膜（例如固化的环氧树脂）组成的液晶液晶的光调制材料。 光调制材料通过将液晶溶解在未固化的树脂中，然后固化树脂来制备，使得液晶的液滴自发形成并均匀地分散在整个片材或膜上。 当材料的温度改变以将液晶转化为各向同性相或者电场施加在材料上时，新材料显示出从不透明散射模式到透明透光模式的可逆的高对比度光学响应。 该材料对应变光学响应，由此在张力下它用于使入射光偏振。 在施加的场的存在下固化材料也使其作为电寻址偏振器。