US 11,832,942 B2
Biological material measuring apparatus
Kosuke Shinohara, Tokyo (JP); Kentaro Enoki, Tokyo (JP); Koichi Akiyama, Tokyo (JP); Shimpei Ogawa, Tokyo (JP); and Daisuke Fujisawa, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 16/962,229
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Feb. 2, 2018, PCT No. PCT/JP2018/003528
§ 371(c)(1), (2) Date Jul. 15, 2020,
PCT Pub. No. WO2019/150543, PCT Pub. Date Aug. 8, 2019.
Prior Publication US 2021/0059574 A1, Mar. 4, 2021
Int. Cl. A61B 5/1455 (2006.01); G01N 21/359 (2014.01); G01N 21/41 (2006.01)
CPC A61B 5/1455 (2013.01) [G01N 21/359 (2013.01); G01N 21/41 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A biological. material measuring apparatus comprising:
an infrared light source configured to radiate infrared light in entirety or part of a wavelength region including absorption wavelengths of a biological material;
a prism configured to cause the infrared light radiated from the infrared light source to pass therethrough and emit the infrared light to a living body surface while being in contact with the living body surface;
a light source to radiate light of a wavelength in a visible light region or a near infrared region to the prism; and
a light position detector to detect a path of light from the light source by detecting whether light from the light source which is emitted from the prism includes refracted light.