| 基于AVR单片机的双液体变焦透镜驱动系统 |
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| 引用本文： | 刘芳,彭润玲,陈家璧,朱岱亮,庄松林. 基于AVR单片机的双液体变焦透镜驱动系统[J]. 光学仪器, 2009, 31(5): 62-66 |
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| 作者姓名： | 刘芳 彭润玲 陈家璧 朱岱亮 庄松林 |
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| 作者单位： | 上海理工大学,光电信息与计算机工程学院,上海,200093;南华大学,机械工程学院,湖南,衡阳,421001 |
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| 基金项目： | 国家973计划，国家自然科学基金资助项目 |
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| 摘 要： | 基于电湿效应的圆锥形双液体变焦透镜是一种新型的透镜，它通过外加电压改变液面曲率半径来实现变焦，从而达到无机械运动变焦的目的。现设计了一种基于AVR单片机的驱动系统，该系统通过调整输出PWM波的占空比可以对外输出一个频率固定为1kHz、幅值可调的电压，用于驱动双液体透镜改变焦距。电控系统可以方便快捷地调整输出电压的大小，从而驱动双液体变焦透镜快速、稳定地改变焦距。
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| 关 键 词： | 变焦透镜 AVR单片机 驱动系统 |
A driving system for double-liquid zoom lens based on AVR MCU |
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| LIU Fang,PENG Runling,CHEN Jiabi,ZHU Dailiang,ZHUANG Songlin. A driving system for double-liquid zoom lens based on AVR MCU[J]. Optical Instruments, 2009, 31(5): 62-66 |
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| Authors: | LIU Fang PENG Runling CHEN Jiabi ZHU Dailiang ZHUANG Songlin |
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| Affiliation: | LIU Fang, PENG Runling, CHEN Jiabi, ZHUDailiang, ZHUANG Songlin (1. School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. School of Mechanical Engineering, University of South China, Hengyang 421001, China) |
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| Abstract: | Conical double-liquid variable-focus lens based on electrowetting is a novel design of lenses,which varies the focal length by changing the curvature of liquid interface without lens displacement.In this article,a driving system based on AVR MCU(micro controller unit) is designed.Through regulating the duty cycle of the PWM waveform,this system outputs a voltage that the frequency is fixed at 1kHz and the amplitude is adjustable,which can drive to change the focal length of the double-liquid lens.This electric control system changes the output voltage quickly and easily,and drives the double-liquid variable-focus lens varying the focal length rapidly and steadily. |
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| Keywords: | zoom lens AVR MCU driving system |
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