PHOTOSENSOR UNIT
First Claim
1. A photosensor unit including a light emitting element and a light receiving element housed in a unit case, and configured such that reflected light of detection light emitted from the light emitting element to an outside of the unit case is received with the light receiving element, the reflected light being reflected from the outside of the unit case, whereina plurality of the light emitting elements are disposed around the light receiving element, anda passage space for the reflected light inside the unit case is separated from a passage space for the detection light inside the unit case by an appropriate partition.
2 Assignments
0 Petitions
Accused Products
Abstract
An object of the present invention is to provide a photosensor unit with a structure which is simple and also does not cause decrease in detection accuracy. Provided is a photosensor unit including a light emitting element 1 and a light receiving element 2 housed in a unit case 3, and configured such that reflected light of detection light emitted from the light emitting element 1 to the outside of the unit case 3 is received with the light receiving element 2, the reflected light being reflected from the outside of the unit case 3. A plurality of the light emitting elements 1 are disposed around the light receiving element 2, and a passage space for the reflected light inside the unit case 3 is separated from a passage space for the detection light inside the unit case 3 by an appropriate partition 4.
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Citations
2 Claims
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1. A photosensor unit including a light emitting element and a light receiving element housed in a unit case, and configured such that reflected light of detection light emitted from the light emitting element to an outside of the unit case is received with the light receiving element, the reflected light being reflected from the outside of the unit case, wherein
a plurality of the light emitting elements are disposed around the light receiving element, and a passage space for the reflected light inside the unit case is separated from a passage space for the detection light inside the unit case by an appropriate partition.
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2-5. -5. (canceled)
Specification