Optical Element for Measuring Bioinformation and Bioinformation Measuring Device Using the Same
To achieve a reliable and easy measurement of a concentration of a target component in an organism, in an optical element including: a first light-entrance plane, a body tissue contact-plane provided with a groove portion to be brought into contact with a body tissue, and a first light-exit plane; the groove portion includes a second light-entrance plane and a second light-exit plane; light that entered through the first light-entrance plane is applied to the body tissue protruded by the groove portion via the second light-entrance plane, and light absorbed by the body tissue and/or scattered, and entered through the second light-entrance plane exits the first light-exit plane; and a normal line of the plane opposing the body tissue contact-plane, and a plane made by a normal line of the second light-entrance plane and a normal line of the second light-exit plane intersect with each other.
1 . An optical element for measuring biological information, comprising:
a first light-entrance plane,
a body tissue contact-plane provided with a groove portion to be brought into contact with a body tissue, and
a first light-exit plane,
said groove portion comprising a second light-entrance plane and a second light-exit plane,
wherein light entering through said first light-entrance plane is applied to the body tissue protruded by said groove portion via said second light-exit plane, and light absorbed by said body tissue and/or scattered, and entering through said second light-entrance plane exits from said first light-exit plane; and
a normal line of a plane opposing said body tissue contact-plane, and a plane made by a normal line of said second light-entrance plane and a normal line of said second light-exit plane intersect with each other.
2 . The optical element for measuring biological information in accordance with claim 1 , wherein said plane opposing said body tissue contact-plane comprises a recess portion.
3 . The optical element for measuring biological information in accordance with claim 2 , wherein a cross section of said recess portion is substantially V-shaped.
4 . The optical element for measuring biological information in accordance with claim 2 , wherein said recess portion is formed with a curved plane.
5 . The optical element for measuring biological information in accordance with claim 1 , wherein said plane opposing the body tissue contact-plane comprises a projecting portion.
6 . The optical element for measuring biological information in accordance with claim 5 , wherein said projecting portion is formed with a curved plane.
7 . The optical element for measuring biological information in accordance with any of claim 1 , wherein said body tissue contact-plane comprises a flow path with an opening portion.
8 . The optical element for measuring biological information in accordance with claim 7 , wherein a bottom plane of said flow path is substantially V-shaped.
9 . The optical element for measuring biological information in accordance with claim 7 , wherein said bottom plane of the flow path is a curved plane.
10 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 1 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.
11 . The optical element for measuring biological information in accordance with any of claim 2 , wherein said body tissue contact-plane comprises a flow path with an opening portion.
12 . The optical element for measuring biological information in accordance with any of claim 3 , wherein said body tissue contact-plane comprises a flow path with an opening portion.
13 . The optical element for measuring biological information in accordance with any of claim 4 , wherein said body tissue contact-plane comprises a flow path with an opening portion.
14 . The optical element for measuring biological information in accordance with any of claim 5 , wherein said body tissue contact-plane comprises a flow path with an opening portion.
15 . The optical element for measuring biological information in accordance with any of claim 6 , wherein said body tissue contact-plane comprises a flow path with an opening portion.
16 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 2 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.
17 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 3 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.
18 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 4 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.
19 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 5 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.
20 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 6 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.
21 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 7 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.
22 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 8 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.
23 . A biological information measuring device comprising:
a light source,
the optical element in accordance with any of claim 9 ,
a light-detector for detecting light exiting said optical element, and
a computing unit for computing information obtained by said light-detector.