Views:30 Author:Site Editor Publish Time: 2020-07-01 Origin:Site
Many people should have an impression. In the early 20th century, most families used more complicated glass lamps, such as chandeliers and ceiling lamps. The windows and lamps also use similar glass. Since the lamps will be easier to fall after aging and cause danger, I gradually hope to use other materials to replace them, so I found acrylic (polymethyl methacrylate), also known as organic glass, chemical abbreviation Codename PMMA.
Plastic lampshades are usually divided into five types: PS, PVC, PMMA, PC, and PE. If these types of plastics have their own advantages and disadvantages, the comprehensive comparison of various characteristics is that PC is better than PMMA than PVC, PS, and PE. Since PVC and PS are easily deformed after a long time, and the heat is poor, and PE emits toxic gases when burned, it is better to manufacture lenses he is PC and PMMA, and the biggest advantage of PMMA is: its optical performance; it is transparent, and The difference between other transparent materials is that it can transmit light that other transparent materials can not pass through; it can withstand outdoor aging, exposure to sunlight without affecting its transparency, and other transparent plastics do not have it; but at the same time, PMMA also has disadvantages, namely the surface Low hardness, not resistant to scratches. With the development of science and technology, the hardness of acrylic products produced by using imported acrylic particles has been improved. And PMMA is a non-toxic and environmentally friendly material that can be used to produce tableware, sanitary ware, etc. It has good chemical stability and weather resistance. PMMA is not easy to produce sharp fragments when broken. The United States, Japan and other countries and regions have made mandatory provisions in the law. Primary and secondary schools and kindergarten buildings must use PMMA resin.
There are many car light manufacturers in China that need to export a lot of car lights to countries all over the world. In order to provide better services, we have changed most of the lens materials to PC and PMMA, so that the chip's light flux can achieve the best results. And, it has good stability, can accept extreme high temperature and low temperature weather, does not affect the lighting of the car lights, has good impact resistance and earthquake resistance, and the material will not produce sharp debris, so that the car can safely pass through the wilderness environment.
All of ourlaser series products use the best PC materials as lenses.