BLOOD SUGAR MEASURING INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To provide a blood sugar measuring instrument enabling the so-called non-invasive measurement for measuring the concentration of glucose in blood from the outside of a human body and having high precision and excellent reproducibility.

SOLUTION: The light emitted from a semiconductor laser diode 20 is incident on the sample 21 of a subject through a rotary deflecting plate 25 and subsequently detected by a photodetector 23 through a fixed deflecting plate 22. The reference light emitted from a reflection type sensor 24 passes through the fixed deflecting plate 22 and the rotary deflecting plate 25 to be incident on a rotary reflecting mirror 26 and the reflected light again passes through the rotary deflecting plate 25 and the fixed deflecting plate 22 to be incident on the reflection type sensor 24. The rotary deflecting plate 25 and the rotary reflecting mirror 26 are rotated by a motor driver 28 and a motor 27. The semiconductor laser diode 20 is controlled by a semiconductor laser diode control unit 29. The light signals detected by the photodetector 23 and the reflection type sensor 24 are sent to a measuring personal computer 30.

COPYRIGHT: (C)2004,JPO