Recycling

At some recycling sites, transparent materials should be sorted by material. While it is difficult to distinguish them with visible light spectrum cameras, UV image sensors can achieve this easily because they can visualize the difference of materials in light absorption and transmittance in the ultraviolet (UV) light. It is also possible to utilize SWIR (short-wavelength infrared) for the same purpose. Switch the SWIR light in different SWIR wavelengths to match the target materials, then we can capture respective images with a SWIR image sensor to sort them.

High-speed recycling lines involve tasks like separating pre-scrap PET bottles from other recyclables and sorting bottles by size, so there is a role to play for high-resolution image sensors that can work at high speeds. Global shutter image sensors equipped with Pregius / Pregius S technology are compact and high resolution with excellent shape recognition capabilities in high-speed imaging, contributing to better sorting precision and time saving.

In the future, we intend to aim to reduce CO2 further by taking advantage of the material’s excellent recyclability to aim for closed recycling of set product using SORPLAS™ as a raw material.