Patent ID: 7310542

Claim:
A non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, the apparatus comprising: a light source unit for generating light of a predetermined wavelength; a spectroscope for dividing the light into a predetermined wavelength band and for applying the light onto the measuring portion; a detection unit for detecting light reflected or transmitted by the measuring portion and for converting the detected light into an electrical signal; a signal processing unit for processing the electrical signal; and a body-apparatus interface unit for fixing a periphery of the measuring portion during measurement, wherein the body-apparatus interface unit includes: a fixing section for securing the periphery of the measuring portion; an expanding section for stretching the measuring portion by expanding the fixing section; a body-light reacting section for compressing the measuring portion into a predetermined thickness, the body-light reacting section having two optical windows for transmitting light; and a thickness adjusting section for adjusting a distance between the two optical windows.