1. Ordinary optical glass glasses are made of ordinary optical glass lenses to prevent mechanical injuries of turning workers, grinders, milling workers, drillers, boring workers, riveters, sand cleaners, molding workers and acid and alkali burns of acid and alkali operations, laboratory tests, sampling, as well as drivers, surgical personnel to prevent foreign bodies from entering the eyes.

 

2. Sunshade glasses, also known as sunglasses, have a transmittance of visible light of about 20%, and a good absorption of ultraviolet and infrared rays. There are light green, light gray, light tea and other colors, used to make shade and snow work Protective Glasses. The light gray lens has the least effect on color recognition. Light tea glasses make the blue sky look darker and reduce green light transmission; Light green lenses reduce red light transmission.

 

3. The colorant used in this kind of lens is mainly iron oxide, cobalt oxide, etc., yellow-green, can fully absorb light waves below 500urn wavelengths, the transmittance of visible light is below 1%, and only a small amount of infrared can pass. These glasses are designed for use in gas welding operations.

 

4. The ultraviolet light produced by electric welding protective glasses can cause damage to the cornea and conjunctiva tissues when exposed to the eye for a short time (the most serious with 28nm light). The resulting intense infrared light is easy to cause ocular lens opacity. Welding goggles are good at blocking above infrared and ultraviolet rays. This lens is based on optical glass, using iron oxide, cobalt oxide and chromium oxide coloring agents, in addition to a certain amount of cerium oxide to increase the absorption of ultraviolet light. The appearance is green or yellow-green. It can block all ultraviolet rays, infrared transmittance <5%, visible light transmittance is about 0.1%.

 

5. Anti-solid breakage protective glasses are mainly used to prevent mechanical damage to the eyes such as metal or sand debris. The lenses and frames should be strong in structure and resistant to impact. The frame is provided with a shielded edge, on which there should be ventilation holes. Protective lens can choose tempered glass, glue bonded glass or copper wire mesh protective lens.

 

6. Protective glasses against chemical solution chemical eye injury refers to the acid and alkali liquid or corrosive smoke entering the eye during the production process, which will cause corneal burns, such as the use of sodium hydroxide, the operation of calcium oxide cans, the delivery of pipelines containing corrosive liquids or gases, and the splash of cyanide or nitrite during metal quenching. 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 solution splashing into. Usually used in laboratories, hospitals and other places, general medical glasses can be used.

 

7. The anti-ultraviolet mirror melts ultraviolet absorption chemicals into the optical glass, which has a high absorption rate of visible light and ultraviolet rays. According to the needs of different types of work, the lenses are respectively installed on the frame, mask or helmet. There are now electric welding mirrors made of liquid crystal, which can turn black in 0.001 ~ 0.002s in case of strong light, protecting welding operators from electro-optical ophthalmia.

 

8. The high-temperature protective mirror lens is made of high-temperature glass, which can absorb some infrared rays, and is used for furnace workers, stokers, blacksmiths, fire watchers, casting workers, glass workers, etc., in smelting operations.

 

9. Radiation protection mirror is to add lead to optical glass for X-ray, gamma ray, alpha ray, beta ray operators.

 

10. Microwave protective mirror Microwave is an electromagnetic wave with a wavelength of about 1nm-lM, which can also cause damage to people, especially eyes. If under the action of strong microwave, it can cause eye fatigue, eye dryness and dizziness, and even lead to crystal opacity, cataracts and retinal damage. Microwave damage to the human eye, mainly due to the thermal effect caused by crystal opacity, resulting in the occurrence of "cataracts". Laser has many applications in industry, medical treatment, scientific research and so on. Laser if projected on the retina can cause burns, laser greater than 0.1mW can cause eye bleeding, protein coagulation, melting, permanent blindness. Its protection is to spray tin tetrachloride and metal compounds that can improve electrical conductivity on the surface of the lens, which is to add an extremely thin layer of tin oxide gold powder on the outer surface of the optical glass to form a multi-layer conductive film on the surface of the lens, which plays a role in shielding the microwave. Because microwaves can be shot around the lens into the eye, the frame should also be shielded to prevent microwave damage to the eye.

 

11. Anti-laser mirror is to prevent laser radiation to the glasses, the shape of the mirror, the lens must be equipped with a closed or semi-closed frame to prevent the laser around the lens into the eye, the lens is made of polymer synthetic materials, can be replaced. According to the principle of anti-laser radiation, anti-laser glasses are divided into reflection type, absorption type, reflection absorption type, explosion type, photochemical reaction type and discolored glass-ceramic type, etc., which can be used as protective glasses for laser operators. The lens requirements are very high, such as the choice of light source, attenuation rate, light reaction time, light density, light transmission effect, etc., different nano (nm) lasers need to use different bands of lenses.