dcsimg Shining a light on polycarbonate materials for LED street lamps

Covestro sharpens the focus on LED technology

Shining a light on materials for LEDs

These are challenging times for municipalities, which must juggle multiple priorities, including improving public safety and reducing energy consumption. Achieving these objectives is even more difficult as many municipalities are operating under reduced budgets.

Hella Street Lamp
Using Makrolon® LED polycarbonate grades, Covestro and Hella developed street lighting tailored to improving public safety and reducing energy consumption.

Task

These are challenging times for municipalities, which must juggle multiple priorities, including improving public safety and reducing energy consumption. Achieving these objectives is even more difficult as many municipalities are operating under reduced budgets.

Challenge

Many municipalities are choosing to implement LEDs in street lights. Targeted bundling and guidance of the LED light using special optical lenses helps to ensure or even improve vehicular and pedestrian safety. A high-performing material was needed to deliver the properties needed to optimize LED lighting.

Solution

Lighting manufacturers depend on Covestro’s portfolio of specially developed LED grades of Makrolon® polycarbonate to meet their needs for replacement lamps and next-generation luminaries. Hella turned to Covestro and its LED polycarbonate for help developing its Eco StreetLine street lamps. The lights utilize energy-efficient LED technology and can be dimmed by as much as 50 percent. The long service life of the LED modules – 12 years or 50,000 hours – helps reduce operating costs.

Case Profile

Supplier

Covestro AG

Industry

Electrical

Application

Eco StreetLine street lamp

Makrolon® polycarbonate - the state of the art design all-rounder with phenomenal material properties

With superior light transmission, LED grades of Makrolon® polycarbonate exhibit good luminous flux, the meaure of light emitted by the light source.

Lenses formed from Makrolon® polycarbonate are also more break-resistant and significantly more resistant to high temperatures or thermally stable than other transparent plastics.

Its excellent dimensional stability allows LED grade Makrolon® polycarbonate to retain its original shape when exposed to heat or humidity.

LED grades of Makrolon polycarbonate offer glass-like transparency without the weight of glass.

Makrolon® polycarbonate can be processed by injection molding, giving designers the freedom to implement complex lens shapes.

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