Glasses are simple optical devices used to correct vision or protect eyes, which are composed of lenses and frames. /kloc-At the end of 0/3 century, Italy invented glasses. At that time, glasses could only be said to be magnifying glasses, and they were held in your hand when reading. A pair of glasses frame usually consists of lens ring, nose rest, pile head and lens foot, in addition to the above components, there are foot covers, hinge screws and so on.

At present, the lenses used are basically resin lenses, and the design of lenses is basically aspheric. The selected lens is an aspheric lens made of resin material. One characteristic of aspheric lenses is that the optical power of the optical center is higher than that of the periphery, that is to say, if the lens frame is too large and the pupil distance is too small, the machining center will be shifted more. Besides the thick edge, not only can the central dominant optical area not be effectively utilized, but the periphery will also interfere with the vision of the central area.

Frame material:

1, carbon fiber frame is a relatively new kind of glasses material, with light weight, good elasticity, high temperature resistance, corrosion resistance and radiation resistance. In addition, its strength is higher than that of steel, its density is lower than that of aluminum, its corrosion resistance is higher than that of stainless steel and its high temperature resistance is higher than that of heat-resistant steel.

2. Pure titanium spectacle frames are made of pure titanium, which is lighter than ordinary metal spectacle frames, corrosion-resistant and anti-allergic.

3. The frame is a fashionable and classic spectacle frame with fine workmanship, good quality, durability, bright colors, strong texture, easy processing and no deformation at room temperature.

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