This study presents a novel thermal isolation component ÃÂÿpolymer jointÃÂÿ to reduce the current and heat flow (by conduction) between micro thermal actuators. An optical stage consisted of V-beam thermal actuators for optical-tracking and thermal-driven focal-length tunable micro polymer lens for optical-focusing is employed to demonstrate the present concept. To overcome the thermal coupling of these two actuators by heat-conduction, the two components fabricated by SOI wafer (Si~150 W/m-k) are connected by the low thermal conductivity joints (polymer~0.2 W/m-k). The displacement provides by the V-beam actuator is about ÃÂñ13ÃÂÿm. The temperature difference is about 80ÃÂðC measurement by infrascope. The variation of micro lens radius of curvature is about 1%.
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机译:这项研究提出了一种新型的热绝缘组件–聚合物,以减少微型热执行器之间的电流和热流(通过传导)。一个光学平台由用于光学跟踪的V型光束热致动器和用于光学聚焦的热驱动焦距可调微聚合物透镜组成,用于演示本发明。为了克服这两个致动器通过导热的热耦合,由SOI晶片制造的两个组件(Si〜150 W / m-k)通过低导热率接头(聚合物〜0.2 W / m-k)连接。 V型梁致动器提供的位移约为ƒ±±13ñm。温差是大约80°C的红外光谱仪测量。微透镜曲率半径的变化约为1%。
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