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How MF proudce Lens?

  • how MF produce lens for LED lights?
    how MF produce lens for LED lights?
    Ming Feng Lighting Produce all kinds of LED lens for indoor and outdoor light, what is so called lens? why it is so important?Usually speaking, there are 4 types of lens,Silicone lensa. Because of the high temperature resistance of silica gel (reflow soldering is also possible), it is often used to directly package LED light-emitting devices.b. Generally, the silica gel lens has a small volume and a diameter of 3-10mm.PMMA lensa. Optical grade PMMA (polymethylmethacrylate, commonly known as acrylic).B. plastic materials, advantages: high production efficiency (can be completed by injection molding and extrusion); High light transmittance (about 93% at 3mm thickness); Disadvantages: the temperature shall not exceed 80 ° (thermal deformation temperature 92 ℃).PC lensa. Optical grade polycarbonate (PC for short) polycarbonate.b. Plastic materials, advantages: high production efficiency (can be completed by injection molding and extrusion); The light transmittance is slightly low (about 89% when the thickness is 3mm); Disadvantages: the temperature shall not exceed 110 ° (thermal deformation temperature 135 °).