| 摘要 |
PROBLEM TO BE SOLVED: To perform accurate measurement and easy installation regardless of a thickness of a finger of a subject for installing a sensor for a living body. SOLUTION: A light emitting part 3 and a light receiving part 4 are separated to be respectively sandwiched/fixed between tape materials 21, 25 and 23, 26, these tape materials are adhered to opposed surfaces of a finger 15 so that the optical axes D of the light emitting part 3 and the light receiving part 4 coincide with each other, and the outer periphery is covered with the tape materials 25, 26 to be installed on the finger 15.
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