An improved arterial pulsation measurement (APM) system that uses three LED light sources and a CCD image sensor
to measure pulse waveforms of artery is presented. The relative variations of the pulses at three measurement points near
wrist joints can be determined by the APM system simultaneously. The height of the arterial pulsations measured by the
APM system achieves a resolution of better than 2 μm. These pulsations contain useful information that can be used as
diagnostic references in the traditional Chinese medicine (TCM) in the future.
In this research, a new module of skin treatment has been proposed. The 40 pieces of red and 36 pieces of yellow LEDs
are utilized to be the light sources in treatment the cracks and corrosions on skin, and the 4 pieces of white light LEDs
are applied in lighting on skin. In addition, the image of skin could be obtained by a CCD webcam, and the skin
inspection will be determined by number of pores in images. Finally, the good experimental results have been obtained
in human body.