Title:
OPTICAL SCANNING DEVICE
Document Type and Number:
Japanese Patent JP2017133991
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical scanning device configured to prevent noise and shifts in optical scanning caused by a rotary shaft of a reflective mirror or a rotary shaft of a power source being vibrated by gyro-moment generated due to high-speed rotation of the reflective mirror.SOLUTION: An optical scanning device 100 includes: a motor 10; a rotary unit 70 being rotated about a vertical shaft 12 by the motor 10; a reflective mirror 30 configured to be rotatable about the vertical shaft 12 and about a horizontal shaft 80 together with the rotary unit 70, and to irradiate a target object with scanning light and reflect reflection from the target object toward a photoreception unit 40; and a drive transmission unit 60 for transmitting rotational drive of the motor 10 to the horizontal shaft 80 holding the reflective mirror 30. The rotary unit 70 is formed to have a mass distribution that generates counter moment M to gyro-moment N induced by rotation of the reflective mirror 30 about the vertical shaft 12 and about the horizontal shaft 80.SELECTED DRAWING: Figure 1
Inventors:
SHINOZUKA YUKIO
Application Number:
JP2016015273A
Publication Date:
August 03, 2017
Filing Date:
January 29, 2016
Export Citation:
Assignee:
SHINANO KENSHI CO
International Classes:
G01B11/24; F16H1/14; F16H13/04; G02B26/10
Attorney, Agent or Firm:
Watanuki International Patent and Trademark Office