根据聚合物分散液晶材料的光电特性及需要,在研究基于聚合物分散液晶光电器件时必须设计合适的电源驱动系统。介绍了在电控聚合物分散液晶全息透镜器件研制中,将电池输出的直流低压升高变频到70~100 V、1 000 Hz频率交流高电压的电路系统设计。并介绍了变焦透镜装置总体结构的机械设计。实验结果表明,该电源设计能够满足聚合物分散液晶全息透镜器件中的液晶分子光轴驱动的需要,并能实现器件的小型化和便捷式。

According to the characteristics of the polymer dispersed liquid crystal materials, it is necessary to design special power driving supply system for the devices based on H-PDLC element. In this paper, a kind of the power supply specially designed for the H-PDLC switchable lens is introduced. The electrical circuit can realize transform from low DC voltage to 1 000 Hz 70~100 V AC voltage. The corresponding mechanical design is also introduced. The experimental results show that the power supply can satisfy the requirement of the H-PDLC switchable lens devices, and bring benefit to the integration of the whole system.