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Resin lenses compared with glass lenses

Number of visits: Date:2012-12-24 09:52
Resin lenses with surface abrasion strength, poor chemical resistance capacity than glass, easy to scratch the surface, water absorption than glass and large (these shortcomings can be improved by coating method) and high coefficient of thermal expansion, poor thermal conductivity, softening temperature is low, easy to deform Fatal drawback of optical performance.   However, the manufacturing cost is low resin lenses: injection molding of the lens, simply create a precision mold, allows mass production, processing cost and time savings. So businesses in order to achieve the highest profits in the glasses when you usually recommend to you resin lenses. Now a lot of friends who wear glasses are used in resin lenses, the reasons for this situation although there are manufacturers flicker, but compared to the glass lens resin lens resin lens still has its advantages:

TypeInfo: Trade News

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