Optical lens test
Inspection of spectacle
Optical lens testThere are many kinds of optical lenses. According to different materials, they can be divided into glass lenses, resin lenses, PC lenses, etc.; according to different product functions, they can also be divided into myopia lenses, presbyopia lenses, sunglasses, polarized lenses, anti blue light lenses, etc.; according to the types of optical vertex power, they can be divided into single focus lenses, multi focus lenses, gradual focus lenses, etc. In addition, it can be divided into 1.49, 1.56, 1.60, 1.67, 1.74, etc.
Inspection of spectacleAs the main structure of glasses, spectacle frame plays a role of supporting the lenses and aesthetics. Glasses frames are classified into metal, plastic or resin, natural materials, etc. according to their materials; they are mainly divided into full frame, half frame, frameless and other types according to their styles. The test of spectacle frame not only puts forward the basic requirements for the structural mechanical properties, but also makes clear provisions for the surface quality and material corrosion resistance of spectacle frame. In addition, as a long-term direct contact product with human skin, spectacle frame has more and more strict requirements on the content and release of harmful substances.
Eye protectorAs a kind of glasses for special purposes, eye protectors have been paid more and more attention with the rapid development of industrial industry in recent years. According to its shape and structure, eye protectors are generally divided into three categories: goggles, goggles and masks. As a kind of functional glasses, eye protection products have special requirements for impact resistance. They also have different testing requirements for material properties, structural design and other aspects from ordinary glasses.
Sun glassesSunglasses can be divided into sun visors, light sunglasses and special Sunglasses according to their uses. According to the different transmittance, it can be divided into 0 class, 1 class, 2 class, 3 class and 4 class. With the more and more extensive use of sunglasses, the standard of sunglasses is also constantly updated. Recently, the European Sunglasses STANDARD EN 12312-1 has added many new test project requirements. It is believed that a new version of the domestic Sunglasses standard will be launched soon.
Driving mirrorDuring driving, the driver will receive reflected light and glare (such as water surface glare and light glare) from various objects on the road or in front of him. The driving mirror can filter out unnecessary light, make the vision clearer and drive safer. According to the transmission score, driving mirrors are divided into daily mirrors and night vision mirrors.
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