Patent ID: 8046056
Filing Date: 2011-10-25
Classification: A61B

Abstract:
1. A method of measuring a body fat by using a body fat measurement apparatus comprising an optical detector and at least two light source units, the method comprising: illuminating a biological tissue with a first light source unit with a corresponding first source intensity and a second light source unit with a second source intensity; detecting an optical signal which is scattered from the biological tissue, and measuring an optical signal intensity corresponding to the at least two light source units; calculating a slope based on a first optical signal intensity and a second optical signal intensity by using a distance between the first light source unit and the second light source unit of the at least two light source units, and a difference between the first optical signal intensity and the second optical signal intensity, the first optical signal intensity corresponding to the first light source unit and the second optical signal intensity corresponding to the second light source unit, respectively; and measuring a thickness of body fat of the biological tissue from the calculated slope, wherein the first optical source intensity and the second optical source intensity are different from each other due to using different numbers of light sources.