Safety glasses

1. Protective eyeglasses, which are protected against falling solids, are mainly used to prevent mechanical damage to the eyes, such as metal or gravel debris. Spectacle lenses and spectacle frames should be structurally strong and resistant to impact. Frames are covered around the edges and there should be ventilation holes. Protective glasses can use tempered glass, glue glass or copper mesh protective glasses.

2. Anti-chemical solution protective glasses are mainly used to protect the eye against chemical damage caused by irritating or corrosive solutions. Ordinary flat optics can be used, and the frame should be covered to prevent splashing. Usually used in laboratories, hospitals and Other places, general medical glasses can be used universally.

3. Radiation protective goggles, used to prevent excessive damage to the eyes caused by ultraviolet radiation and other radiation. Lenses are made of special glass that reflects or absorbs radiation, but transmits some visible light.
The lenses are plated with bright chromium, nickel, mercury or silver metal films that reflect the radiation; blue lenses absorb infrared rays, while yellow-green lenses absorb both ultraviolet and infrared rays. The colorless leaded lenses absorb X-rays and gamma rays.
For example, common welding glasses have relatively low transmittance requirements for the lenses, so the colors of the lenses are mostly ink-based;
Laser protective glasses, as the name suggests, is to prevent laser radiation to the glasses, so the lens is very demanding, such as the choice of light source, attenuation rate, light reaction time, optical density, light transmission effect, different nanometer (nm) laser Need to use different wavelengths of lenses.

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