| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately reduce effects shallow part tissues and extract a signal of deep part tissues, especially when the deep part tissue is targeted for measurement in an optical measuring apparatus for a living body. <P>SOLUTION: The apparatus disposes a reflector 203 having a mechanism for changing reflectance between a light source 201 and a detector 202, alternately measures two diverse states, being a normal state and a strengthened one where the level of the signals in the shallow part tissues 501 and 502 such as changes of skin blood flow included in the detected signals and extracts the signals of the deep part tissues 503 such as a brain signal from the differences. <P>COPYRIGHT: (C)2012,JPO&INPIT |
