Title:
光走査装置およびその制御方法
Document Type and Number:
Japanese Patent JP6789438
Kind Code:
B2
Abstract:
The present invention provides an optical scanning device capable of optical scanning without reducing the spatial resolution even when the scanning range is expanded. The optical scanning device (100) comprises: a light source (101) emitting a light; a scanning mirror (106) that includes a reflecting plane reflecting a light entering from the light source (101) and that is allowed to oscillate independently around each of a first axis extending in the reflecting plane and a second axis orthogonal to the first axis and extending in the reflecting plane; and a controller (103) controlling the scanning mirror (106) in terms of a first frequency and a first amplitude of oscillation around the first axis as well as a second frequency and a second amplitude of oscillation around the second axis for scanning with the light reflected by the reflecting plane of the scanning mirror (106). The controller (103) controls the second frequency based on the maximum scanning angle in the sub-scanning direction.
Inventors:
Yasuhiko Ito
Nobuaki Konno
Yoshiaki Hirata
Nobuaki Konno
Yoshiaki Hirata
Application Number:
JP2020505593A
Publication Date:
November 25, 2020
Filing Date:
December 17, 2018
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G02B26/10; B81B3/00; G01S7/484; G01S17/86; G01S17/931; G02B26/08
Domestic Patent References:
| JP201590463A | ||||
| JP200075030A | ||||
| JP11153664A | ||||
| JP4620789B1 | ||||
| JP4881073B2 |
Foreign References:
| WO2016153687A1 | ||||
| US20170307736 |
Attorney, Agent or Firm:
Takuji Yamada
Haruo Nakano
Haruo Nakano