What problems should we pay attention to in high-power LED Cap lenses?
Must have professional optical injection molding machine, such as Toshiba, Demag, Haitian, shock and other brands of injection molding machine, and strict control of injection molding process in order to obtain qualified products.
The product must be packaged with anti-static, dustproof, PVC, and must be completely sealed and packed. Storage must be strictly controlled with temperature and humidity, and it is best not to be stored for more than one year. From the design and production process of the above LED lens, LED lens appears to be simple, from design to production, the software and hardware requirements are very high, it also causes the market price difference of LED lens is great. From the bright future of the popularization of LED lighting, lenses as an essential part of LED lighting fixtures, the market outlook will be better and better.
Product inspection: no bubbles, no sag, no shrinkage mark, no rhyolite, no crescent shape accuracy; the surface roughness of Rt<0.005 Ra<0.0002.
As an optical grade, LED lenses have strict requirements for light transmittance, thermal stability, density, refractive index uniformity, refractive index stability, water absorption, turbidity, maximum long-term operating temperature, etc.. Therefore, the material of the lens must be selected according to the actual conditions. In principle, optical grade PMMA is selected. If there are special requirements, optical grade PC can be selected. At present, the Japanese MITSUBISHI PMMA material is the best (VH001 is often selected brand), Mitsubishi Co branch in China, Nantong Li Yang will be slightly worse;
Must be equipped with 10000 or even higher level dust-free workshop, operators must be anti-static clothing, wearing finger sets, wearing masks and other anti-static measures, and regular inspection and cleaning of the workshop.
