Title:
Object detection device and sensing device
Document Type and Number:
Japanese Patent JP6340851
Kind Code:
B2
Abstract:
An object detection device (20) includes a light source unit (201) that emits light toward an object positioned in a detection area, an optical deflector (204) including a reflection surface to reflect light, which is emitted from the light source unit (201) and reflected from the object, incident on the reflection surface, an optical system (28) arranged on an optical path of the light reflected from the reflection surface, and a light-receiving unit (29) configured to receive the light passed through the optical system (28). The optical system (28) vignettes a part of one, which is incident on the reflection surface at a smaller incident angle than the other, of light reflected from the object in a first end portion of the detection area and light reflected from the object in a second end portion that is on the side opposite from the first end portion of the detection area.
Inventors:
Nakamura Tadashi
Application Number:
JP2014055720A
Publication Date:
June 13, 2018
Filing Date:
March 19, 2014
Export Citation:
Assignee:
株式会社リコー
International Classes:
G01S7/481; G01S17/86; G01S17/931; G02B26/10
Domestic Patent References:
| JP5113481A | ||||
| JP2014020889A | ||||
| JP2014032149A | ||||
| JP7072239A | ||||
| JP2011257193A | ||||
| JP59178425A |
Foreign References:
| EP2687865A1 |
Attorney, Agent or Firm:
Atsushi Tateishi