Class of optical materials

Class of optical materials

  • 2020-11-07
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Class of optical materials

(Summary description)

  • Categories:NEWS
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  • 2020-11-07
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3.3.1 Reflected aluminum Al
At present, the mainstream reflective cup is the aluminum spinning light cup, surface anodic oxidation or vacuum electroplating, this reflective cup, processing is simple, using aluminum spinning molding, mold and product unit price is relatively cheap. However, due to the low precision, injection molding and vacuum sputtering will be used in high-precision applications instead. Grille reflectors for traditional lamp panel products, also made of aluminum sheets, have become less common as they are gradually replaced by panel lamps.
3.3.2 Polycarbonate PC
Polycarbonate (PC), scientific names, light transmittance slightly lower than that of PMMA, the material thickness of 3 mm penetration rate of around 89%, but than PMMA high temperature resistant, thermal deformation temperature at 135 degrees, and resistance to yellowing, hence outdoor often use PC lens, when the plate as the anti-dazzle microstructure, if the strength and yellowing requirement is high also should choose the PC material, due to the high molding temperature on the process requirement is high, strength to the mold demand is high, so the domestic stability in the batch production of PC anti-glare board only blue wait for a few manufacturers.
3.3.3 PMMA
PMMA, scientific name polymethyl methacrylate, light transmittance of this kind of material is higher, about 3 mm thickness penetration rate of 93%, but no ability of high temperature, the temperature should not be more than 80 degrees, and in 92 they produce thermal deformation, moreover, with the increase of using time and ultraviolet radiation, can produce yellowing, reduce transmittance, therefore, PMMA lens is often used for indoor, the characteristics of its high through makes the indoor environment of the panel light guide plate is commonly adopt PMMA.
3.3.4 Polystyrene PS
PS, scientific name polystyrene, this material has the lowest light transmittance, the penetration rate is about 85% at the thickness of 3MM, the thermal deformation temperature is 70~100°C,

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