| Summary: | 碩士 === 義守大學 === 電子工程學系碩士班 === 94 === Light, playing an important role in human’s life, can be used in various fields, such as plant cultivation, animal growth and breed, and medical treats. Following the laser and IPL (Intense Pulse Light), a LED comes onto the stage of dermatology. Some scholars in contemporary applied LED on the research of phototherapy, and proved the effect of LED. However, the effect of LED is just limited in the single symptom, such as acne, jaundice, and joint paints, etc. Given the advantages of LED, including small size, long life-span, regular wave-length, and the accommodation of the DC power, this study is devoted to a multi-function phototherapy instrument, with lights of different wavelength, such as red, green, or blue light, the power of irradiation and the mode of irradiation, to achieve the effect of the various photo therapies.
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