Optics: Creating optical parts for LED applications with multi-layer injection molding technology
Polycarbonate enables the efficient design and manufacture of optical parts for LED applications, with complex geometries not possible with glass – particularly in the area of collimator lenses. We offer multi-layer injection molding technology that creates thick-walled lenses with high precision.
Lower operation temperatures inside LED headlamps – compared to HID or halogen light sources – enable transparent polymers to replace glass as the material for collimator lenses. Which is why more and more car manufacturers are using injection-molded thermoplastics to produce lenses with complex geometries for their innovative new headlamp designs. We support this trend in two ways. First, we have developed a group of tailor-made polycarbonates, our Makrolon® LED grades, with improved optical properties like purity, color and stability against high-power LEDs. Second, on the processing side, we developed multi-layer injection molding technology that allows the molding of thick-walled lenses with high precision and short cycle times. The success of this technique lies in splitting up lenses into several layers which are then molded in parallel.
In summary, we offer:
• Tailor-made Makrolon® LED grades for demanding optical systems
• High-precision optical and other material data for Makrolon® LED
• Special injection-molding technologies for optical parts