Title:
MOTION SENSOR
Document Type and Number:
Japanese Patent JP2015132489
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a motion sensor in which a response speed is improved and an erroneous operation is prevented.SOLUTION: A motion sensor 1A comprises: a plurality of first light-emitting elements 21, 22 for emitting light having characteristics differing from each other to the movement area of an object to be detected; a light-receiving element 40 for receiving light that was emitted from the first light-emitting elements 21, 22 and reflected by the object to be detected; a second light-emitting element 30 for emitting light toward the light-receiving element 40; and an isolation member 50. The isolation member 50 is composed of a light guide part 51 for guiding the light emitted from the second light-emitting element 30 so that it is radiated to the light-receiving element 40 without passing the movement area of the object to be detected and a light-shading part 52 for shading the light from the first light-emitting elements 21, 22 so that it is not directly radiated to the light-receiving element 40, the light guide part 51 and the light-shading part 52 being integrally formed.
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Inventors:
SAWAGUCHI TAKAMI
Application Number:
JP2014002925A
Publication Date:
July 23, 2015
Filing Date:
January 10, 2014
Export Citation:
Assignee:
TOKYO PARTS KOGYO KK
International Classes:
G01B11/00; G01S17/04; G06F3/0346
Domestic Patent References:
| JPH10148640A | 1998-06-02 | |||
| JP2003524198A | 2003-08-12 | |||
| JP2007175415A | 2007-07-12 |
Foreign References:
| US4967083A | 1990-10-30 |
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