Title:
DRIVE CONDITION SETTING DEVICE AND DRIVE CONDITION SETTING METHOD FOR OPTICAL SCANNING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/207970
Kind Code:
A1
Abstract:
A drive condition setting device which is applied to an optical scanning device comprising a fiber for irradiating an observation object with illumination light, and a drive mechanism for vibrating the tip of the fiber in an x direction and a y direction detects the scanning trajectory of the illumination light emitted from the fiber, measures the respective resonance frequencies in the x direction and the y direction of the fiber, and on the basis of the resonance frequencies, determines a drive frequency and a drive voltage as drive conditions for a drive mechanism in such a way that the scanning trajectory falls within a predetermined range with respect to a target amplitude and the following conditional expressions are satisfied:
If fx>fy,
fdfx and Vx≤Vy … (2),
whereas if fx≤fy,
fdfy and Vx≥Vy … (4)
where fd is the drive frequency, fx is the resonance frequency in the x direction, fy is the resonance frequency in the y direction, Vx is the maximum voltage of a drive signal in the x direction, and Vy is the maximum voltage of the drive signal in the y direction.
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Inventors:
SHIMAMOTO ATSUYOSHI (JP)
YAMADA MASASHI (JP)
KOSHIKA SOICHIRO (JP)
YAMADA MASASHI (JP)
KOSHIKA SOICHIRO (JP)
Application Number:
PCT/JP2015/068000
Publication Date:
December 29, 2016
Filing Date:
June 23, 2015
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B1/00
Domestic Patent References:
| WO2013069382A1 | 2013-05-16 |
Foreign References:
| JP2014198089A | 2014-10-23 | |||
| JP2008514344A | 2008-05-08 | |||
| JP2001174744A | 2001-06-29 | |||
| JP2010527688A | 2010-08-19 |
Attorney, Agent or Firm:
UEDA, Kunio et al. (JP)
Ueda Kunio (JP)
Ueda Kunio (JP)
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