发明名称 |
DRIVER FOR OPTICAL DEFLECTOR USING COMPLEX-SINUSOIDAL-WAVE DRIVE VOLTAGES AND METHOD FOR SETTING THE SAME |
摘要 |
A driver for driving an optical deflector includes a mirror, a movable frame for supporting the mirror, a support body surrounding the movable frame, and a first group of piezoelectric actuators and a second group of piezoelectric actuators alternating with the first group of piezoelectric actuators. A first drive voltage for the first group of piezoelectric actuators has first repeated waves each with a first rising period. A second drive voltage for the second group of piezoelectric actuators has second repeated waves each with a second falling period corresponding to the first rising period of the first drive voltage and a second rising period corresponding to the first falling period of the first drive voltage. Frequencies of the first and second repeated waves exclude natural frequencies of a mechanically-vibrating system of the mirror with respect to the axis thereof depending upon the piezoelectric actuators.
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申请公布号 |
US2012224240(A1) |
申请公布日期 |
2012.09.06 |
申请号 |
US201213411101 |
申请日期 |
2012.03.02 |
申请人 |
AIMONO TAKANORI;YASUDA YOSHIAKI;STANLEY ELECTRIC CO., LTD. |
发明人 |
AIMONO TAKANORI;YASUDA YOSHIAKI |
分类号 |
G02B26/08 |
主分类号 |
G02B26/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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