Nec Solution Innovators, Ltd.

Nec System Technologies, Ltd.

Ippei Kamimura

An optical unit () includes a light-emitting portion () that irradiates an analysis target with light, light-receiving portions () that receive light that has been reflected or diffused by the analysis target, a mounting substrate () on which these portions are mounted, and a plate-shaped member () having optical transparency. The plate-shaped member () is arranged so as to cover the light-emitting portion () and the light-receiving portions () that are mounted on the mounting substrate (). Positions of the light-emitting portion (), the light-receiving portions (), and the plate-shaped member () are set such that, in the case where the analysis target is in contact with the plate-shaped member (), light emitted from the light-emitting portion () is incident on two or more of the light-receiving portions () after being reflected or diffused by the analysis target.

Optical unit and optical analysis device

A blood sugar level prediction device () is for predicting the blood sugar level of a user (). The blood sugar level prediction device () is provided with a pattern selection unit () that selects one pattern from a plurality of preset blood sugar level time series variation patterns, based on the blood sugar level of the user () at the time of fasting, and a correction processing unit () that corrects the selected pattern using a plurality of measured values obtained by executing optical measurement of blood sugar levels over a number of measurement dates, targeting the user ().

Blood sugar level prediction device, measurement device, blood sugar level prediction method and computer-readable storage medium

An analysis device for analyzing components contained in an object includes a light emitting unit that irradiates the object with light, a transmissive spectral filter, a light detector including a plurality of light receiving elements, an analysis unit. The spectral filter includes a substrate having light transmissivity and being disposed on a light path of the light after being reflected by the object or the light after passing through the object, a plurality of raised portions formed with a metal material on one surface of the substrate, and a metal oxide film including a metal oxide material having a higher refractive index than the metal material, so as to cover the plurality of raised portions and the one surface of the substrate.

Analysis device

An optical unit has a filter member that disperses transmitted light and a photodetector that has light receiving elements. The filter member has a light transmissive substrate, protrusions including a first metallic material and formed on one surface of the substrate, and a metal film including a second metallic material having a refractive index higher than that of the first metallic material and formed so as to cover the protrusions as well as the one surface of the substrate. The metal film located between adjacent protrusions can be a diffraction grating and the protrusions can be waveguides. At least one of the grating cycle of the diffraction grating, the height of the protrusions, and the thickness of the metal film is set to a value different for each portion such that a wavelength of light transmitted through the filter member changes for each portion.

Growing community of inventors

Tokyo, Japan

Ippei Kamimura