Invention Grant
- Patent Title: Oscillator device and optical deflection device
- Patent Title (中): 振荡器和光学偏转装置
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Application No.: US12363534Application Date: 2009-01-30
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Publication No.: US07750746B2Publication Date: 2010-07-06
- Inventor: Kazufumi Onuma
- Applicant: Kazufumi Onuma
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick. Cella, Harper & Scinto
- Priority: JP2008-031195 20080213
- Main IPC: H03B5/30
- IPC: H03B5/30 ; H03L7/00

Abstract:
An oscillator device includes an oscillation system including an oscillator and a resilient supporting member, a driving member configured to supply a driving force to the oscillation system based on a driving signal, and a driving frequency control unit configured to control a driving frequency of a driving signal to be outputted to the driving member, wherein, when an oscillation frequency of the oscillator is to be changed from a current oscillation frequency to a target oscillation frequency, the driving frequency control unit temporarily outputs, to the driving member, a driving signal having a driving frequency which is made different from the target oscillation frequency, being changed from the current driving frequency and beyond the target oscillation frequency, thereby to cause the driving member to drive the oscillation system.
Public/Granted literature
- US20090201095A1 OSCILLATOR DEVICE AND OPTICAL DEFLECTION DEVICE Public/Granted day:2009-08-13
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