| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to measure a pulse wave even in the vicinity of the tip end of an antilobium for example while reducing noise due to vibration caused by a pressure pulse near the surface of a skin by using light of a wave band easily penetrating the dermis of a living body as a detecting light in a pulse wave measuring instrument for detecting biological information. SOLUTION: The first pulse wave measuring instrument has a laser element for emitting light with wavelength of 0.65-1.85μm to the living body, and a frequency difference detecting element detecting a frequency difference between a reflected light, wherein the laser light emitted from the laser element is reflected by the living body, and the laser light. The laser element and the frequency difference detecting element are mounted on an arm nipping the antilobium. COPYRIGHT: (C)2009,JPO&INPIT
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