发明名称 |
OSCILLATOR DEVICE, OPTICAL DEFLECTING DEVICE AND METHOD OF CONTROLLING THE SAME |
摘要 |
<p>An oscillator device including an oscillation system with oscillators and torsion springs, a driving member for driving the oscillation system, and a drive control member for supplying a driving signal to the driving member, the oscillation system having at least a first oscillation mode and a second oscillation mode, the second oscillation mode having an angular frequency approximately n-fold the angular frequency of the first oscillation mode where n is an integer, the driving member driving the oscillation system so that it simultaneously oscillates in the first and second oscillation modes, wherein a natural angular frequency calculating member calculates the natural angular frequency of the second oscillation mode based on an output signal from a photodetector, being outputted at a timing whereat the reflection light passes over the photodetector.</p> |
申请公布号 |
WO2008153221(A1) |
申请公布日期 |
2008.12.18 |
申请号 |
WO2008JP61369 |
申请日期 |
2008.06.16 |
申请人 |
CANON KABUSHIKI KAISHA;FUJII, KAZUNARI;MIYAGAWA, SUGURU |
发明人 |
FUJII, KAZUNARI;MIYAGAWA, SUGURU |
分类号 |
G02B26/08;G02B26/10 |
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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