Bte Born - aluminium mirror / aluminum mirror

Waste sorting made easy

Application example: Optical coating solutions in recycling and waste sorting systems

Complex sorting tasks in recycling systems and waste management require distinguishing between various materials such as plastic, metal, and wood. Sorting by color and type of plastic is particularly crucial, as only unmixed plastics can be recycled. Optical sorting systems with sensors and cameras are essential for the optimal recovery of recyclable materials. Optical coatings enhance the efficiency of these automated systems.

Visual Sorting

Optical systems equipped with specific coatings are used to sort and categorize objects based on visual characteristics. Filters for material recognition and separation are employed in recycling systems to sort objects on conveyor belts. Mirrors, infrared filters, and highly transmissive coatings, often in large formats, are also utilized. Stable optical coatings and highly reflective mirrors are necessary for precise position checks.

Sensors Require Optimal Lighting Conditions

Sensors in optical sorting systems need excellent lighting conditions to detect materials, shapes, and colors quickly and accurately. At Bte Born, we coat the optical components of detection units, which are made of glass and other materials. For effective detection, it is crucial to separate the detection components of light from interfering light. This ensures the detection system operates efficiently.

Special filters, known as daylight blockers or daylight filters, are used to filter out the visual light spectrum, such as sunlight or ambient light in recycling plants, while allowing infrared radiation to pass through.

Infrared Filters for LIBS Sorting

In recycling sorting systems, IR long-pass filters are often placed in front of the receiver to transmit infrared radiation and block the visual spectrum. Filters like NIR filters are also used in LIBS (Laser-Induced Breakdown Spectroscopy) systems that work with lasers. These filters help analyze the emission of light to determine the elemental composition of recycled materials. NIR (near-infrared) sensors can distinguish between different types of materials.

Tailor-Made Solutions for Waste Sorting Tasks

At Bte Born, we offer customer-oriented optical coating solutions with a variety of coatings, from anti-reflective coatings to mirrors and deflecting mirrors to optical filters. These solutions are precisely adapted to the requirements of individual sorting tasks in recycling applications.

By developing and producing sustainable applications with our partners, we contribute to the UN Sustainability Goals for a sustainable future!

Tailor-Made Solutions for Waste Sorting Tasks

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