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Measurement apparatus and biological information measurement apparatus

A technology for measuring devices and measuring objects, which can be used in measuring devices, diagnostic recording/measurement, color/spectral characteristic measurement, etc.

Pending Publication Date: 2021-09-07
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, in the technique of Patent Document 2, since the temperature of the object to be measured in the region around the optical portion is adjusted, a temperature difference may occur between the optical portion such as a total reflection member and the object to be measured.
As a result, when the object to be measured touches, the temperature of the object to be measured changes, and measurement reliability may decrease

Method used

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  • Measurement apparatus and biological information measurement apparatus
  • Measurement apparatus and biological information measurement apparatus
  • Measurement apparatus and biological information measurement apparatus

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Embodiment Construction

[0044] Below, refer to the attached Figure 1 Embodiments of the present invention will be described. The present invention is not limited to the embodiments shown below, and other embodiments, additions, amendments, deletions, etc., can be changed within the conceivable scope of those skilled in the art. Effects are also included within the scope of the present invention.

[0045] In each drawing, the same components are denoted by the same symbols, and repeated descriptions are omitted.

[0046]

[0047] (mid-infrared region)

[0048] The term "mid-infrared region" refers to a wavelength region of 2 to 14 μm, and is an example of a specific wavelength region.

[0049] (probe light)

[0050] The term "probe light" refers to light used for absorbance measurement and biological information measurement. In the embodiment, it corresponds to the light detected by the light intensity detector after being totally reflected by the total reflection member and attenuated by the ...

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Abstract

The invention relates to a measurement apparatus and a biological information measurement apparatus. The present invention addresses the problem of suppressing a temperature difference generated between a total reflection member and a measured object. The measurement apparatus of one embodiment of the invention includes a total reflection member configured to totally reflect an incoming probe beam in a state being in contact with a measured object; and a temperature adjuster configured to maintain, to a predetermined temperature, a temperature of a contact region of the total reflection member with the measured object.

Description

technical field [0001] The present invention relates to a measurement device and a biological information measurement apparatus (biometric information measurement apparatus). Background technique [0002] In recent years, diabetic patients are increasing all over the world, and non-invasive blood sugar level measurement without blood sampling is desired. As a method of measuring biological information such as a blood sugar level using light, various methods such as using near-infrared light, using mid-infrared light, and using Raman spectroscopy have been proposed. Among them, the mid-infrared light region is a fingerprint region where the absorption of glucose is large, and the measurement sensitivity can be improved compared with the near-infrared light region. [0003] As a light source in the mid-infrared region, a light-emitting device such as a quantum cascade laser (QCL: Quantum Cascade Laser) can be used, but the number of wavelengths used requires a laser light sou...

Claims

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Application Information

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IPC IPC(8): A61B5/1455G01N21/35G01N21/552
CPCA61B5/1455A61B5/14532G01N21/35G01N21/552A61B5/1491A61B2562/0271
Inventor 大场义浩笠原亮介和田芳夫佐佐木俊英
Owner RICOH KK
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