As 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 inspection 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. Jiangsu stende glasses testing and Certification Co., Ltd. escort your vision, and do a good job in every step of glasses testing, glasses frame testing.
1. Full frame: Jiangsu spectacle inspection is the most commonly used type of spectacle frame, characterized by firmness, easy finalization and covering part of the lens thickness.
2. Nylon wire frame: a very thin nylon wire is used as part of the frame edge, and the lower edge of the lens is ground flat by special grinding. There is a narrow groove in the lower edge, so that the nylon wire is embedded in the groove, forming a pattern without bottom frame, so the weight is very light, giving people a sense of lightness, uniqueness and firmness.
3. No frame: this kind of frame has no mirror ring, only metal bridge and metal foot. The inspection lens of Danyang glasses is directly connected with bridge and foot by screws, and holes are usually made on the lens. The frameless frame is lighter and more chic than the ordinary frame, but its strength is slightly lower.
4. Combination frame: there are two sets of lenses at the front frame, one of which can be turned up, usually indoor and outdoor.
5. Folding frame: the frame can be folded into four fold or six fold, mostly reading mirror.
6. Half frame frame frame: half frame is made of a very thin nylon wire as part of the frame edge, characterized by light weight, giving people a sense of lightness and uniqueness, but also relatively firm.
7. Eyebrow frame: the eyebrow frame is similar to the half frame mirror frame. The upper half frame only has a loop wire similar to the eyebrow. A very thin nylon wire is used as the lower part of the frame edge. The style is fashionable.