Biological information detection apparatus
First Claim
1. A biological information detection apparatus comprising:
- a housing surface;
a detection unit which has a light emitting unit which is configured to emit light to a subject and a light receiving unit configured to receive light from the subject, wherein the biological information detection apparatus is configured to be attached to the subject externally;
a light transmitting member which is provided on the housing surface configured to be in contact with the subject of the biological information detection apparatus, transmits light from the light emitting unit and the subject, and configured to be placed adjacent to and comes into contact with skin of the subject while measuring biological information of the subject;
a first diaphragm provided adjacent to or integral with the light transmitting member, wherein the first diaphragm is provided on light receiving unit side, wherein the first diaphragm is provided between the light transmitting member and the light receiving unit, between the light transmitting member and the subject, or inside the light transmitting member, wherein the first diaphragm includes an opening that is configured to narrows light from the subject in an optical path between the subject and the light receiving unit, wherein;
an angle between a first line, which connects a first end portion of a light transmitting region of the light transmitting member and a first end portion of the light receiving unit as an end portion away from the first end portion of the light transmitting region out of two end portions of the light receiving unit, and an optical axis of the light receiving unit is θ
r,an angle between a second line, which connects the first end portion of the light receiving unit and an end portion on an opening side of the first diaphragm, and the optical axis is θ
a, andθ
a is less than θ
r; and
a processing unit for processing an output of the detection unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A biological information detection apparatus includes a detection unit which has a light receiving unit receiving light from a subject, a light transmitting member which is provided on a housing surface side in contact with the subject of the biological information detection apparatus, transmits light from the subject, and comes into contact with the subject when measuring biological information of the subject, and a diaphragm unit which is provided between the light transmitting member and the detection unit, between the light transmitting member and the subject, or inside the light transmitting member, and narrows light from the subject in an optical path between the subject and the detection unit. The detection unit includes a light emitting unit which emits light to the subject, and the biological information detection apparatus has a light shielding unit which is provided between the light receiving unit and the light emitting unit.
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Citations
18 Claims
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1. A biological information detection apparatus comprising:
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a housing surface; a detection unit which has a light emitting unit which is configured to emit light to a subject and a light receiving unit configured to receive light from the subject, wherein the biological information detection apparatus is configured to be attached to the subject externally; a light transmitting member which is provided on the housing surface configured to be in contact with the subject of the biological information detection apparatus, transmits light from the light emitting unit and the subject, and configured to be placed adjacent to and comes into contact with skin of the subject while measuring biological information of the subject; a first diaphragm provided adjacent to or integral with the light transmitting member, wherein the first diaphragm is provided on light receiving unit side, wherein the first diaphragm is provided between the light transmitting member and the light receiving unit, between the light transmitting member and the subject, or inside the light transmitting member, wherein the first diaphragm includes an opening that is configured to narrows light from the subject in an optical path between the subject and the light receiving unit, wherein; an angle between a first line, which connects a first end portion of a light transmitting region of the light transmitting member and a first end portion of the light receiving unit as an end portion away from the first end portion of the light transmitting region out of two end portions of the light receiving unit, and an optical axis of the light receiving unit is θ
r,an angle between a second line, which connects the first end portion of the light receiving unit and an end portion on an opening side of the first diaphragm, and the optical axis is θ
a, andθ
a is less than θ
r; anda processing unit for processing an output of the detection unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification