Makrolon® LED2245 EL (edge lighting) illuminates up EV-Rearlamp vision
Covestro's Makrolon® LED2245 EL is a pioneering polycarbonate material for automotive lighting design . It enables efficient, visually appealing slim edge lighting applications in rear lamps and others, addressing regulatory compliance while overcoming traditional material constraints.
Space-saving material solution thanks to edge-lighting
Automotive designers and engineers face challenges balancing aesthetics, functionality, material limitations, and regulatory requirements. Traditional solutions often compromise design freedom, hindering sleek, slim, visually appealing systems. HASCO´s vision sought an innovative, space-saving solution for rear lights where the design posed heat resistance and flexibility challenges for some materials.
Challenge
Balancing Lighting Design, Optical Performance, and Regulatory Compliance
The challenge was finding a material meeting contradictory requirements:
robustness against temperature within design and regulatory boundaries;
specific color when non-illuminated;
yet high transparency, light-guiding properties and brightness, for homogeneous surface illumination when illuminated.
The solution was to intelligently combine material properties and color-optical properties, ensuring optimal light distribution while meeting specified requirements.
Solution
Makrolon® LED – Surpassing Limitations with Functional Color Expertise
Through close collaboration with HASCO, Covestro developed an innovative functional color solution utilizing Makrolon® LED2245 EL polycarbonate. This advanced material enabled integrating the light source at the edge of the light distribution layer, facilitating a space-saving design with homogeneous surface illumination. The very low haze level allowed deep, transparent red coloration, ensuring regulatory compliance. Exhibiting exceptional temperature resistance, Makrolon® LED2245 EL maintained optimal optical performance under demanding conditions.
Key benefits
Light transmission & diffusion Excellent light transmission & diffusion ensure optimal distribution & uniformity for edge lighting.
Superior Thermal Management Higher heat deflection temp than PMMA, withstands ambient & LED heat better.
