Sunglasses Lens-PC Lens 74mm&64mm 1.6mm 2C Degrade Color

Spectacle lenses can be divided into two categories, namely glass lenses and optical resin lenses. Glass lenses include optical glass lenses and high-refractive-index lenses (usually called ultra-thin sheets), which have high hardness and good wear resistance. Generally, their quality and various parameters will not change with time, but the resistance of glass lenses Impact and weight are slightly inferior to resin lenses. Resin lenses are generally much lighter than glass lenses, and their impact resistance is better than glass lenses, but their surface hardness is lower and easier to be scratched. Resin lenses and coated lenses are relatively soft, so you should be careful not to let the mirror surface directly touch hard objects. When scrubbing, it is best to wash with water (or mixed with a small amount of detergent), and then use a special test cloth or high-quality cotton paper. Blot the water droplets from the spectacle lenses. In addition, coated lenses should be used with caution in places with poor environmental conditions, so as not to be stained with dirt and difficult to clean.