发明名称 VARIABLE DENSITY OPTICAL FILTER
摘要 A light scattering liquid crystal transducer in which the degree of light scattering is controlled by impressing an electric field (60) across the cell (42) during and immediately after the application of a high-energy short duration thermal pulse (V1) applied to the entire viewed region of the cell (42). This allows full gray scale to be achieved as a function of applied voltage.
申请公布号 WO9010888(A1) 申请公布日期 1990.09.20
申请号 WO1990US01018 申请日期 1990.03.05
申请人 GREYHAWK SYSTEMS, INC. 发明人 HAVEN, DUANE, A.
分类号 G02F1/133 主分类号 G02F1/133
代理机构 代理人
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