What Are Ultraviolet Rays?

UV (ultraviolet) refers to ultraviolet light, which is divided into four types: vacuum, short wave, medium wave, long wave and ultra long wave. Ultraviolet refers to the general term for radiation in the electromagnetic spectrum with a wavelength from 10nm to 400nm, which people cannot see. In 1801, German physicists discovered that the outer part of the purple end of the sunlight spectrum could sensitize a photographic film containing silver bromide, and thus found the existence of ultraviolet rays. Ultraviolet rays can be used for sterilization. Excessive ultraviolet rays enter the body and cause skin cancer.

UV

(Ultraviolet rays)

Dividing the range of the ultraviolet spectrum in the draft international standard limiting solar irradiance

Ultra Long Wave UV Long-wave UV	UVA (+)	400 nm 340 nm 340nm ~ 315nm	3.10 3.94 eV
Near ultraviolet	NUV	400 nm 300 nm	3.10 4.13 eV
Medium Wave UV	UVB	315 nm 280 nm	3.94 4.43 eV
Medium UV	MUV	300 nm 200 nm	4.13 6.20 eV
Short-wave ultraviolet	UVC	280 nm 100 nm	4.43 12.4 eV
Far ultraviolet	FUV	200 nm 122 nm	6.20 10.2 eV
Vacuum UV	VUV	200 nm 100 nm	6.20 12.4 eV
Light ultraviolet	LUV	100 nm 88 nm	12.4 14.1 eV
Ultra-violet	SUV	150 nm 10 nm	8.28 124 eV
Extreme ultraviolet	EUV	121 nm 10 nm	10.3 124 eV

UV curing technology uses UV light (main wavelength: 365nm, special occasions: 254nm) to irradiate UV-curing resins containing coatings, adhesives, or inks that contain photorecombinable prepolymers, photorecombinable monomers, and photoinitiators. The unit's rapid hardening and drying technology. However, the drying of the resin usually requires several minutes to several hours by the common thermal drying method and the superposition reaction method in the two-liquid mixing method.

UV surface sterilization devices are widely used in food, electronics, semiconductors, liquid crystal displays, plasma TVs, crystal vibrators, precision devices, chemicals, medicine, health care, biology, beverages, agriculture ... The UV light source illuminates the surface of food, materials, etc., which has a fast, efficient and pollution-free sterilization effect, thereby maintaining the high quality of your product.