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Advanced materials for LED optics


Since the start of the LED lighting revolution, plastic optics have been made primarily from acrylic (PMMA), polycarbonate or a modified version of either material (for example PMMI). More recently, silicon-based optical materials have grown in market share.  These silicone resins are suitable for precise molding and can be used for refractive lenses, TIR lenses, reflectors, diffusers, and other optical components.

Key advantages of silicone resins include:

This test image above shows Methyl Silicone, a  Dow Corning® MS-1002 and MS-1003 material
and Poly Carbondate and PMMA aging. Source: Dow Corning

Complex design streetlight  silicone lens made by Gaggione. Source: Gaggione

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