Title:
DETECTION DEVICE, DETECTION SYSTEM, AND DETECTION METHOD
Document Type and Number:
Japanese Patent JP2021148534
Kind Code:
A
Abstract:
To provide a device, a system, and a method, capable of reducing the erroneous detection of an object.SOLUTION: The detection device for detecting the object includes a first light source 22 for emitting an infrared ray in a first direction, a second light source 23 for emitting light in a second direction different from the first direction, a shield member which is arranged so as to transmit only a part of the light emitted from the second light source 23 and shields the optical path of the light from the second light source 23, and detection means for detecting the object by receiving the light from the first light source 22, reflected to the object and the reflected light of a part of the light from the second light source 23, transmitted through.SELECTED DRAWING: Figure 8
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Inventors:
SHINOZUKA MICHIAKI
KUBOTA SHUJI
KUBOTA SHUJI
Application Number:
JP2020047279A
Publication Date:
September 27, 2021
Filing Date:
March 18, 2020
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
G01J1/02; G01J1/04; G01V8/20
Attorney, Agent or Firm:
Shinya Mayama