It is said that the eyes are the windows of the soul, so the lens is the life of a pair of glasses. If myopia occurs, myopic glasses cannot be separated, and the composition of a pair of glasses cannot be without lenses. But what everyone does not know is that there are many types of spectacle lenses, not only the epoxy resin lenses we know, but what materials are there for spectacle lenses? Which material is better? Let’s take a look together.
1. What are the materials of spectacle lenses?
1. Epoxy resin lens.
Epoxy resin lens is a kind of lens that everyone uses more at this stage. It is composed of a compound of phenolic resin structure. It is lighter in weight, heat-resistant, impact-resistant and not easily broken. It has no corners when it is broken. It is safe and can reasonably block ultraviolet light. It is loved by many people who wear glasses.
2. Glass lens.
The picture quality of laminated glass lens is slightly higher than that of epoxy resin. It is more scratch-resistant and abrasion resistant than other raw material lenses. The lens is thinner and has better electronic and optical properties.
3. PC lens.
The organic chemical name of PC lens is polypropylene resin, which is a thermosetting raw material. PC lens is also called “space film” and “cosmic space film”. PC lenses are tough, not easy to crack, and are resistant to collisions. Therefore, they are also called safety lenses. They are also lighter materials for myopia lenses at this stage, but they are more expensive. In terms of performance, PC sheets are stronger than epoxy resin sheets.
4. AC lenses.
PC lenses and AC lenses are all epoxy lenses, only their processing technology is different, the difference depends on the former one is hard, the latter is too soft, AC lenses have excellent toughness, light weight, high perspective rate , Good anti-fog.
5. Polarized lenses.
Generally used on sunglasses, it is an indispensable weapon and equipment for car owners and anglers. It can filter out a lot of glare and prevent dazzling and glare. However, if the curvature of the lens itself cannot be electronic optics If the refractive condition is standardized, the actual effect of polarized light will be weakened, the hazard image will be real and effective, and the durability will be poor.
6. Nylon lenses.
Nylon lenses are made of polyester. Nylon lenses have very high ductility, high-quality electronic optics, and strong impact resistance. They are generally used as safety protection objects.