RT800 series infrared therapy apparatus using polarized light point linear polarized light near infrared light to treat diseases of the human body,which has the advantages of infrared light and laser,it can have effective treatment to all kinds of disease,and the therapeutic effect was remarkable,without any side effects.The infrared polarizer is a light source with a wide spectrum near infrared ray between 0.6m~1.6mum.After the polarization system,the light power is stronger,the depth of irradiation is deeper and the curative effect is more remarkable.