Comparison between acrylic lens and resin lens

1、 Acrylic lens

Acrylic plate is polymerized from methyl methacrylate monomer (MMA), namely polymethylmethacrylate (PMMA) plate plexiglass. The material of acrylic lens is PMMA. The vacuum coating of the plate extruded from acrylic base plate is called acrylic lens. Plastic lens is used to replace glass lens, which is light in weight, 1/2 lighter than glass of the same thickness, bright in color and high in brightness, which is incomparable with other materials, It has strong impact resistance, 16 times that of ordinary glass, and is suitable for installation in areas with special needs for safety. Acrylic lenses are non-toxic, harmless even if they are exposed to people for a long time, and will not produce harmful gases when burning. It has good weather resistance, acid and alkali resistance, and will not yellowing and hydrolysis due to the sun and rain all year round. It has strong plasticity, large shape change, simple processing and forming, and good transparency, The light transmittance reaches 92%, which has the reputation of "plastic water products". The acrylic lens has good insulation function and is suitable for various electrical equipment.

Disadvantages: poor hardness, easy to scratch, and easy to be deformed by heat. Do not use it at high temperature. If the temperature exceeds 85 ℃, the acrylic lens will be partially damaged.

2、 Resin lens

Resin is a kind of plastic polymer compound that softens when exposed to heat. The resin lens is the lens formed by chemical synthesis of resin as raw material and processing and polishing. The resin lens has obvious advantages. The lens made of resin is light in weight and more comfortable to wear; The resin lens has strong impact resistance and is not fragile and safer; In addition, the resin lens has good light transmittance, which is easy to be reprocessed to meet special needs, and is cheap, so it has become the mainstream of lenses on the market.

Disadvantages of resin lens:

The surface abrasion resistance and chemical corrosion resistance of resin lens are worse than that of glass, the surface is easy to scratch, and the water absorption is greater than that of glass. These shortcomings can be improved by coating. The fatal disadvantages are high thermal expansion coefficient, poor thermal conductivity, low softening temperature and easy deformation, which affect the optical performance. The alignment of the title can be adjusted by positioning

Summary: The original material of resin lens is resin, and the raw material of acrylic lens is acrylic electroplated lens. In addition, the resin lens will not be broken by force, while the acrylic lens can be broken by force. If the cost is considered, the acrylic lens will be cheaper than the resin lens, which is suitable for advertising and decoration products, but the resin is more suitable for making glasses.