RESEARCH ON THE APPLICATION OF TWO – WAVELENGTH EFFECTS COMBINED AT THE SAME TIME WITH BIO – FREQUENCY PRODUCED TWO TYPES OF LOW – POWER SEMI – CONDUCTOR LASER IN THE TREATMENT OF SINUSITIS

Abstract

Photo – therapy is a supportive treatment method that has shown considerable therapeutic effects and social significance through a lot of research and practical applications in the world and in the country as well. This paper introduces a method of using a device with a source of low-power semiconductor laser light via its advantages of monochromaticity, ensuring suitable capacity, and having the ability to combine different wavelengths with the modulation frequency of each illness in support of physical therapy, especially to alleviate pain. The photo – therapy device of low – power semiconductor laser light is manufactured with the low power between 0 and 14mW, emitting radiation in the form of a beam, each of which has 7 laser heads including 4 heads with the wavelength of 780nm and 3 heads with the wavelength of 940nm. The modulation frequency of this device is adjusted to the bio – frequency from 5Hz to 100Hz.