Many people have a lot of questions about lenses made of various materials, such as Glass Mirror, acrylic lenses, PC lenses, etc. Then let`s understand the difference between glass lenses, acrylic lenses and PC lenses? Let's find out together! Glass lens: Glass lens is more scratch-resistant than the lens of its own material, such as Silver Mirror, which is often produced as a mirror. However, its weight is relatively heavy, and its refractive index is relatively high. The ordinary sheet is 1.523, and the ultra-thin sheet is above 1.72, up to 2.0. The main raw material of glass lenses is optical glass, and its refractive index is higher than that of resin lenses, so glass lenses are thinner than resin lenses at the same degree. The light transmittance and mechanical and chemical properties of glass lenses are relatively good, with a constant refractive index and stable physical and chemical properties. Optical glass lens: made of high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and other oxides mixed according to a specific formula, and has a wide range of uses. Acrylic lens: Different from Antique Glass Mirror, acrylic lens is actually a general term referring to PMMA plate material after electroplating. Plastic lenses are used instead of glass lenses, which are light in weight, not easy to break, easy to form and process, easy to color, etc. Advantages, the development momentum is increasing day by day, and it has become a class of technology in lens production. Plastic sheets can generally be made into: single-sided mirrors, double-sided mirrors, rubber mirrors, paper mirrors, semi-lenses, etc. can be made according to different requirements. Acrylic has the advantages of light weight, low price, and easy molding. Its molding methods include casting, injection molding, machining, acrylic thermoforming, etc. In particular, injection molding can be mass-produced with simple manufacturing process and low cost. Therefore, its application is becoming more and more extensive. At present, it is widely used in instrumentation parts, automobile lights, optical lenses, transparent pipes, etc. PC lens: general resin lenses are heat-fixed materials, that is, the raw material is liquid and becomes a solid lens after heating. PC film is also called "space film" and "cosmic film". The chemical name is polycarbonate, which is a thermoplastic material. That is, the raw material is solid, and it is shaped into a lens after being heated, so this kind of lens will be deformed after being overheated after the finished product, which is not suitable for high humidity and heat occasions. PC lens has extremely strong toughness and is not broken (2cm can be used for bulletproof glass), so it is also called safety lens, and its specific gravity is only 2 grams per cubic centimeter. The above content is about the difference between glass lenses, acrylic lenses and PC lenses, and I hope it will be helpful to everyone.
