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Introduction to Safety Glasses

2021-08-24

Safety glasses are a kind of glasses with special functions, and the glasses are different for different occasions. Such as surgical glasses used in hospitals, welding glasses used in electric welding, laser protective glasses used in laser engraving, and so on. Protective glasses are also called labor insurance glasses in industrial production. They are divided into two categories: safety glasses and protective masks. They mainly protect the eyes and face from electromagnetic waves such as ultraviolet, infrared and microwave radiation, dust, smoke, metal and sand. Stone debris and damage caused by chemical solution sputtering.

Glasses type:
1. Protective glasses against solid debris are mainly used to prevent mechanical damage to the eyes such as metal or sand and gravel debris. Spectacle lenses and spectacle frames should be strong in structure and resistant to shocks. There should be venting holes around the frame. Protective lenses can be tempered glass, glue-bonded glass or copper wire mesh protective glasses.
2. Protective glasses against chemical solutions are mainly used to protect the eyes from chemical damage caused by irritating or corrosive solutions. Ordinary flat lenses can be used, and the frame should be covered to prevent the solution from splashing. Usually used in laboratories, hospitals and other places, general medical glasses can be used universally.
3. Radiation-proof protective glasses are used to protect the eyes from excessive ultraviolet rays and other radiation rays. The lens is made of special glass that can reflect or absorb radiation, but can transmit a certain amount of visible light. The lens is plated with bright chromium, nickel, mercury or silver metal film, which can reflect radiation; the blue lens absorbs infrared rays, the yellow-green lens absorbs both ultraviolet and infrared rays, and the colorless leaded lens absorbs X-rays and gamma rays. For example, common welding glasses require relatively low light transmittance of the lens, so the lens color is mostly ink color; laser protective glasses, as the name suggests, can prevent laser radiation to the glasses, so the requirements for the lens are very high. For the selection of light source, attenuation rate, light response time, light density, light transmission effect, etc., different nanometer (nm) lasers require different wavelength lenses.

Applicable occasions:
Surgical glasses for hospitals, welding glasses for electric welding, laser protective glasses for laser engraving, etc.

Role:

Protect eyes and face from electromagnetic waves such as ultraviolet, infrared and microwave radiation, dust, smoke, metal and gravel debris, and chemical solution sputtering damage.

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