Title:
OPTICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/031328
Kind Code:
A1
Abstract:
Provided is an optical device capable of suppressing variations in the range for scanning light. This optical device (1) comprises: a light source (2) that emits a laser beam; an MEMS mirror (7) that scans the laser beam toward a predetermined range; and a diffraction grating (5) that guides the laser beam to the MEMS mirror (7) by guiding the laser beam in a direction corresponding to the wavelength thereof. The optical device also comprises an MEMS control means (13) that performs control such that, by employing a change in the optical path of the laser beam caused through the diffraction grating (5) by a change in the wavelength of the laser beam, variations in the scanning range of the laser beam by the MEMS mirror (7) are suppressed.
Inventors:
SATO MAKOTO (JP)
OCHIAI TAKANORI (JP)
YANAGISAWA TAKUMA (JP)
OGASAWARA MASAKAZU (JP)
IZUTA RYO (JP)
OCHIAI TAKANORI (JP)
YANAGISAWA TAKUMA (JP)
OGASAWARA MASAKAZU (JP)
IZUTA RYO (JP)
Application Number:
PCT/JP2018/028799
Publication Date:
February 14, 2019
Filing Date:
August 01, 2018
Export Citation:
Assignee:
PIONEER CORP (JP)
International Classes:
G01S7/497; G01S7/481; G01S17/89; G02B26/10
Domestic Patent References:
| WO2017122440A1 | 2017-07-20 | |||
| WO2017104613A1 | 2017-06-22 |
Foreign References:
| JP2009047744A | 2009-03-05 | |||
| JP2008191099A | 2008-08-21 | |||
| JP2004287293A | 2004-10-14 | |||
| JP2014232252A | 2014-12-11 | |||
| JPH05289017A | 1993-11-05 | |||
| JP2013011657A | 2013-01-17 | |||
| JP2011112585A | 2011-06-09 | |||
| JP2016217971A | 2016-12-22 | |||
| JP2000214406A | 2000-08-04 | |||
| JP2007085832A | 2007-04-05 |
Other References:
See also references of EP 3667360A4
Attorney, Agent or Firm:
TAKINO, Fumio et al. (JP)
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