Patent ID: 7252639

Claim:
A biological condition measuring apparatus for measuring a biological condition of a living body, said apparatus comprising: a light emitting unit configured to emit individually first and second lights to a measurement portion of the living body, said first and second lights having first and second wavelengths, respectively, said first and second wavelengths being different from each other; a light receiving unit configured to receive first and second reflection lights to generate first and second detection signals based on the first and second reflection lights, respectively, said first reflection light being based on the first light reflected from the measurement portion, said second reflection light being based on the second light reflected from the measurement portion, said first and second detection signals having different characteristics from each other due to the difference between the first and second wavelengths; and a measuring unit configured to measure the biological condition based on the different characteristics of the first and second detection signals, wherein said first wavelength is longer than the second wavelength, said light emitting unit is configured to control that at least one of an intensity and an amount of the first light is lower than at least one of an intensity and an amount of the second light, and said different characteristics of the first and second detection signals are based on the difference of the first and second wavelengths, and the difference between the at least one of the intensity and the amount of the first light and the at least one of the intensity and the amount of the second light.