Title:
OPTICAL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/031327
Kind Code:
A1
Abstract:
Provided is an optical apparatus with which it is possible to suppress the reception of light having a wavelength outside of reflected light. This optical apparatus (1) has: a light source (2) in which it is possible to change the wavelength of laser light; a scanning unit (5) that diffracts the laser light in accordance with the wavelength thereof, thereby scanning a prescribed range; and a wavelength control unit (9) that changes the wavelength of the laser light, thereby scanning the prescribed range using the laser light via the scanning unit (5). Furthermore, the optical apparatus has: a light-receiving element (8) that receives reflected light obtained by the scanned laser light being reflected by an object (100); and an FP filter (6) that changes the wavelength of transmitted light, thereby preventing the light-receiving element (8) from receiving at least some of environmental light that is oriented toward the light-receiving element (8) via the scanning unit (5).
Inventors:
SATO MAKOTO (JP)
OCHIAI TAKANORI (JP)
IZUTA RYO (JP)
YANAGISAWA TAKUMA (JP)
OGASAWARA MASAKAZU (JP)
OCHIAI TAKANORI (JP)
IZUTA RYO (JP)
YANAGISAWA TAKUMA (JP)
OGASAWARA MASAKAZU (JP)
Application Number:
PCT/JP2018/028798
Publication Date:
February 14, 2019
Filing Date:
August 01, 2018
Export Citation:
Assignee:
PIONEER CORP (JP)
International Classes:
G01S7/481; G01S17/10; G02B26/10
Foreign References:
| JP2016217971A | 2016-12-22 | |||
| JPS63189823A | 1988-08-05 | |||
| JP2009047434A | 2009-03-05 |
Attorney, Agent or Firm:
TAKINO, Fumio et al. (JP)
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