HUNST 355 & 532nm Laser Goggles Medium Size Protective Glasses Shield Protection for UV & Green Laser Safety Goggles.

Model: HM326-A. Protection band: 180-540nm. Optical Density: OD6+. Visible light transmittance: 48%.  Protection features: Absorption protection. Performance: high optical density, high transmittance. Application: used for laser eye protection, UV266nm, 355nm, 515nm, 532nm, laser processing equipment safety protection. 1:  This glasses mainly protect the wavelengths of 180-540nm, OD=6+. 2: Optical density is a complex property of materials, which can slow down the propagation speed of light and produce a refraction effect 3: Different lasers (and corresponding wavelengths) have different effects on the human eye; in general, the greater the optical density, the better the protection effect. Why do you need laser safety glasses (must!) 1: Laser safety glasses, the purpose is to prevent laser exposure. 2: There are usually two types of lasers. Lasers between 400nm-780nm are visible light and visible light. Lasers above 780nm are infrared light and are usually invisible. 3: High-energy