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Types and uses of protective glasses

by:LASERRPAIR     2020-06-07
Shockproof goggles are mainly used to protect the eyes from mechanical damage caused by metal or gravel. The spectacle lens and spectacle frame should be strong in structure and resistant to impact. There are edging around the frame. The current protective lenses are usually made of polycarbonate. Protective glasses against chemical solutions are mainly used to prevent chemical damage to eyes caused by irritating or corrosive solutions. An eye mask can be used, and a ventilation device is designed to prevent the solution from splashing and to maintain long-term operation. Usually used in laboratories, hospitals and other places. Radiation-proof protective goggles are used to protect the eyes from excessive ultraviolet rays and infrared rays. Lenses are made of special materials that can reflect or absorb radiation, but can transmit certain visible light. The lenses are coated with bright chromium, nickel, mercury or silver metal films, which can reflect radiation; blue lenses absorb infrared rays, yellow-green lenses absorb both ultraviolet and infrared rays, and colorless leaded lenses absorb X-rays and gamma rays. For example, common welding glasses require relatively low transmittance of the lens, so the color of the lens is mostly ink; laser protective glasses, as the name suggests, can prevent the radiation of laser to the glasses, so the requirements on the lens are very high, such as The choice of light source, attenuation rate, light reaction time, optical density, light transmission effect, etc., different nanometer (nm) lasers need to use different wavelength lenses.
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