Body component concentration measuring apparatus and method
First Claim
1. A body component concentration measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, the apparatus comprising:
- a light source for emitting light;
a diffraction grating being movable to disperse light emitted from the light source into light components having a plurality of wavelength bands;
a shutter for controlling transmission of the light components having the plurality of wavelength bands;
a lens for focusing the light components passing the shutter onto the measuring portion; and
a detector for detecting the light components passing through the measuring portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A body component concentration measuring apparatus, and method, for measuring a concentration of a body component in a measuring portion of a living body, includes a light source for emitting light, a diffraction grating being movable to disperse light emitted from the light source into light components having a plurality of wavelength bands, a shutter for controlling transmission of the light components having the plurality of wavelength bands, a lens for focusing the light components passing the shutter onto the measuring portion, and a detector for detecting the light components passing through the measuring portion.
-
Citations
20 Claims
-
1. A body component concentration measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, the apparatus comprising:
-
a light source for emitting light;
a diffraction grating being movable to disperse light emitted from the light source into light components having a plurality of wavelength bands;
a shutter for controlling transmission of the light components having the plurality of wavelength bands;
a lens for focusing the light components passing the shutter onto the measuring portion; and
a detector for detecting the light components passing through the measuring portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of measuring a concentration of a body component in a measuring portion of a living body, comprising:
-
generating light components having a plurality of wavelength bands;
acquiring different gains by the light components passing through the measuring portion by varying an amplifier gain according to the plurality of wavelength bands when a shutter is opened; and
estimating the concentration of the body component using signals obtained from the different gains. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification