| 摘要 |
PURPOSE:To increase responsiveness with a thick liquid crystal cell as well and to obtain the liquid crystal cell having high accuracy with good mass productivity by forming an optically active smetic liquid crystal layer so as to have helix when no voltage is impressed thereto and to have no helix when a voltage is impressed thereto. CONSTITUTION:A chiral smetic liquid crystal 6 such as P-n-dodecyl oxybenzilidene-P'-amino-2-methly butyl cinnamate is provided between glass base plates 3 provided with transparent electrodes 4 after a spacer 5 is provided therebetween, thereby manufacturing an optical transducer with which the layer thickness of the liquid crystal 6 is limited within an about >=5mu-10mu range. A film of PVA, etc. may be formed on one or both of the electrodes 4, 4 to provide the effect of orienting the liquid crystal. The liquid crystal layer 6 has helix when no voltage is impressed thereto and has no helix when a voltage is impressed thereto. Polarizing plates are adhered to the outside surfaces of the plates 4, 4 in such a way that the axes of polarization intersect with each other. The optical transducer which has the thick liquid crystal layer, is easily manufacturable and has a fast response speed is thus obtd. |
