dd

In the international optical lens field, the mature technology of optical lenses is a single-substrate coating process, that is, using glass, crystal, PC or resin and other materials to make a lens substrate through optical technology, and then coating the surface such as anti-wear through the coating process , Anti-fouling, anti-ultraviolet, anti-radiation, anti-blue light, anti-glare and other functions.

After the optical lens is finely ground by the grinding fluid, there is still a crack layer with a thickness of about 2–3m on the surface. The method to eliminate this crack layer is polishing. The mechanism of polishing and grinding is the same, but the tool material used is different from the slurry (slurry). The materials used for polishing are cloth, polyurethane, and pitch. Usually, high precision is required. Polished surface, the most commonly used material is high-grade polished asphalt.

After the optical lens is finely ground by the grinding fluid, there is still a crack layer with a thickness of about 2–3m on the surface. The method to eliminate this crack layer is polishing. The mechanism of polishing and grinding is the same, but the tool material used is different from the slurry (slurry). The materials used for polishing are cloth, polyurethane, and pitch. Usually, high precision is required. Polished surface, the most commonly used material is high-grade polished asphalt.

The expansion coefficient of borosilicate glass is popularly speaking, that is, when the glass is taken out of the freezer, it will be filled with the hot water glass that has just been opened, and it will not be broken. Twenty degrees below zero to 130 degrees above zero is no problem. The layer of glass products can be directly into the microwave. High borosilicate is mainly used for glass products, microwave oven supplies, solar tubes, chemical reactors, chemical reaction vessels, etc. It is currently the safest drinking water supply in the world.

Borosilicate glass (specially hard borosilicate glass) has a linear expansion coefficient of (3.3±0.1)×10-6/K-1, which is also called “3.3 borosilicate glass, 95 borosilicate glass”. It is a special high-temperature glass with low expansion coefficient, high temperature resistance, high strength, high hardness, high light transmittance and high chemical stability.

The windows in the house are badly exposed to the sun, and the air-conditioning is often easy to get air-conditioning sick; the well-designed sun room becomes a sauna as soon as summer...