1. Different subjects
1. Phototherapy instrument 308: The instrument is an ultraviolet light therapy instrument.
2. Phototherapy instrument 311: It is an ultraviolet phototherapy instrument, a physical therapy technology that uses ultraviolet rays to irradiate the human body to prevent and treat diseases.
2. Different principles
1. Phototherapy instrument 308: It uses 308 excimer light. 308 excimer ultraviolet light is excimer light using xenon chloride gas as the irradiation source. Can induce T cell apoptosis and promote pigment synthesis.
2. Phototherapy instrument 311: Using narrow-band UVB technology, most of the ultraviolet rays with a wavelength of 311nm can be absorbed by epidermal tissues, so it has significant biological effects on skin and other tissues.
3. Different advantages
1. Phototherapy instrument 308: Patented high-energy focusing technology, high energy density and uniformity, obvious optical effects, and good therapeutic effect.
2. Phototherapy device 311: suitable for middle-aged and young office workers who are unable to seek medical treatment on time and are busy with work.
Baidu Encyclopedia-308 Excimer Ultraviolet Light Therapy Device
Baidu Encyclopedia-Ultraviolet Light Therapy Device