Patent ID: 7349727

Claim:
A living body light measuring device comprising: light measuring means for applying light to a subject and receiving light reflected or transmitted by a head of the subject; signal processing means for drawing a change of a blood substance when a trial is given to the subject a plurality of times, as a signal waveform on the basis of a measurement signal received by said light measuring means; result viewer means for displaying a result of processing conducted by said signal processing means; and input means for sending a command to said signal processing means, wherein said input means comprises means for inputting specification of a specific inspection item among a plurality of inspection items which are contained in a blood flow of the subject and change as time elapses, said signal processing means extracts at least one feature corresponding to a specific inspection item specified by said input means, and causes said result viewer means to display a time curve of the feature as a graph, and said signal processing means comprises: storage means for storing data, the data accumulating relations between sub-items belonging to the inspection item and the time curve; and screening means for judging characteristic traits of the subject on the basis of the graph and a change rate of the accumulated data in the graph obtained as to the subject.