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1. 发明申请

US20110211262A1 MULTIPLE LIQUID LENS DRIVER 审中-公开
标题翻译：多个液体镜头驱动器
公开(公告)号：US20110211262A1
公开(公告)日：2011-09-01
申请号：US12304537
申请日：2007-06-20
申请人： Pierre Craen , Gwenael Morichaud
发明人： Pierre Craen , Gwenael Morichaud
IPC分类号： G02B3/14
CPC分类号： G02B3/14 , G02B26/005
摘要： The invention concerns drive circuitry for generating a plurality of independent drive voltage signals for a plurality of electrodes of at least one liquid lens, the liquid lens comprising first and second miscible liquids, an interface between the first and second liquids being movable by electro wetting by application of a drive voltage signal to at least one electrode of the liquid lens, the drive circuitry including generating circuitry (406, 408, 410, 412) arranged to generate a fixed drive voltage (Vdc); a duty cycle controller (418) arranged to receive data values indicating a duty cycle to be applied to each of the plurality of electrodes, and to generate a control timing signal for each of the plurality of electrodes, each control timing signal having the duty cycle indicated by the controller; and driving means (426, 428, 430, 432) arranged to generate an independent drive voltage signal for each of the plurality of electrodes by selectively applying the fixed drive voltage, based on the control timing signal associated with each liquid lens.
摘要翻译：本发明涉及用于为至少一个液体透镜的多个电极产生多个独立的驱动电压信号的驱动电路，液体透镜包括第一和第二可混溶液体，第一和第二液体之间的界面可通过电润湿由将驱动电压信号施加到所述液体透镜的至少一个电极，所述驱动电路包括被布置成产生固定驱动电压（Vdc）的发生电路（406,408,410,412）; 占空比控制器（418），被配置为接收指示要施加到所述多个电极中的每个电极的占空比的数据值，并且为所述多个电极中的每一个生成控制定时信号，每个控制定时信号具有占空比由控制器指示; 以及驱动装置（426,428,430,432），其被布置成基于与每个液体透镜相关联的控制定时信号，通过选择性地施加固定驱动电压来产生用于多个电极中的每一个的独立驱动电压信号。

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