Resin lenses and PC resin lenses

When choosing a lens for glasses, you often see terms like resin lenses or PC lenses. However, many opticians are relatively unfamiliar with these professional words, and thus have a great deal of trouble when purchasing lenses. In the end, which one should be chosen?
In fact, now we use the resin lens or PC lens they are based on the lens material to name the division. At the same time, it is also the two kinds of lenses that are commonly used in our glasses. PC lenses are produced by the reprocessing of resin lenses, and both have different advantages.
Resin Lens A resin lens is an optical lens made of a resin (a mixture of a plurality of polymer compounds) that has been processed, synthesized and polished by a precise chemical process. At the same time, the resin can be divided into natural resin and synthetic resin.
In fact, the history of resin lenses is very short compared to glass lenses, but in less than a hundred years, resin lenses benefit from the improvement of the process and raw materials, making the lenses lighter and have better light transmission performance. The surface coating of various functions of the film can better meet the different needs of consumers. So that this lens quickly replaced the position of the glass lens, has been recognized by consumers!
Advantages of the resin lens 1. Strong impact resistance, not brittle, the impact resistance of the resin lens is generally 8 ~ 10kg/cm2, is several times the glass, so safe and durable;
2. Transparency is good, the transmittance of the resin lens is more than 2% higher than that of the glass lens. At the same time, the resin lens can effectively prevent ultraviolet damage to the eyes after the film treatment.
3. The processing technology is more flexible and advanced to meet various special needs. The production of high refractive index lenses or aspherical lenses is unmatched by glass lenses;
4. Light weight, light weight, and easy to process. Now the average resin lens quality is between 0.83-1.5 grams per square centimeter;
PC resin lens PC resin lens is a lens made of polycarbonate (thermoplastic material) after heating. This material was developed from space exploration. It is also called a spacecraft or spacecraft. Since the PC resin is a thermoplastic material having excellent properties, it is particularly suitable for producing a spectacle lens.
The history of PC resin lenses is relatively shorter, but thanks to the use of high-quality raw materials, there are fundamental differences between ordinary resin lenses! At the same time adhering to the superior characteristics of raw materials, super impact resistance, so this material is also known as bullet-proof glass after thickening!
Advantages of PC resin lens 1. PC material itself has the function of UV protection, UV protection function is strong, and the ability of 100% UV protection can be achieved. At the same time, the material is not easy to change color.
2. The lighter weight is currently the lightest kind of optical lens; if the lens has no problem in the process, the weight will be about 30% lighter than a normal resin sheet, and about 50% lighter than a glass sheet;
3.PC material is a viscous material, strong toughness, not easy to break, but also a strong impact resistance, 10 times stronger than the impact of the resin sheet, 60 times stronger than the glass sheet;
4. Due to the characteristics of high refractive index and light weight, a variety of versatile, multi-purpose PC lenses are also being introduced to meet the comprehensive needs of the wearer's physiology and protection.
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