| 摘要 |
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. |
