Title:
OPTICAL SCANNING DEVICE
Document Type and Number:
Japanese Patent JP2017090727
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical scanning device capable of accurately scanning an irradiation target area and providing stable operation over an extended period of time.SOLUTION: An optical scanning device A includes: a scanning unit 21 configured to scan a fixed area with light from a light source 11; and a retroreflective light generation unit 22 that reflects light from the scanning unit 21 multiple times to generate retroreflective light that enters the scanning unit 21, the retroreflective light generation unit 22 having retroreflective surfaces 223, 224 configured to cause the retroreflective light to enter the scanning unit 21 at an incident angle that is greater than that of the light of the light source 11.SELECTED DRAWING: Figure 2
Inventors:
IMAHORI YOSHIMASA
Application Number:
JP2015221756A
Publication Date:
May 25, 2017
Filing Date:
November 12, 2015
Export Citation:
Assignee:
FUNAI ELECTRIC CO
International Classes:
G02B26/10; B41J2/47; G02B26/08; H04N1/113
Attorney, Agent or Firm:
Sano patent office