公开(公告)号：US4634226A

公开(公告)日：1987-01-06

申请号：US597746

申请日：1984-04-06

申请人： Masato Isogai ,  Shintaroo Hattori ,  Kishiro Iwaskai ,  Akio Mukoh ,  Takao Umeda ,  Yoshiharu Nagae

发明人： Masato Isogai ,  Shintaroo Hattori ,  Kishiro Iwaskai ,  Akio Mukoh ,  Takao Umeda ,  Yoshiharu Nagae

IPC分类号： G09G3/18 ,  G02F1/133 ,  G02F1/137 ,  G02F1/141 ,  G09F9/00 ,  G02F1/13

CPC分类号： G02F1/13306 ,  G02F1/141

摘要： An optical apparatus comprises an optical device having an optically functional material sandwiched between a pair of substrates with electrodes formed on opposing surfaces. The optically functional material has such a characteristic that intensity of light issuing from the optical device changes asymmetrically in response to inversion of the polarity of an applied external field. Pulse voltages of one polarity for determining the intensity of the issuing light and pulse voltages of an opposite polarity are applied from a source at a predetermined period so that an average voltage is zeroed within the predetermied period. The issuing light intensity under the application of the pulse voltages of one polarity and the issuing light intensity under the application of the other pulse voltages are selected or changed by a switching unit.

摘要翻译： 光学装置包括光学装置，该光学装置具有夹在一对基板之间的光学功能材料，其中电极形成在相对的表面上。 光学功能材料具有这样的特征，即，从光学装置发出的光的强度响应于所施加的外部场的极性的反转而不对称地改变。 用于确定发光的强度的一个极性的脉冲电压和相反极性的脉冲电压以预定周期从源施加，使得在预先设定的周期内平均电压为零。 在施加一个极性的脉冲电压下的发光强度和施加其它脉冲电压的发光强度由切换单元选择或改变。