Thin Film Polarisers and Cubes in UV Fused Silica and BK7 - Polarising Beam Splitters for Machine Vision | |
13 Mar 2019 Machine vision systems allow for automatic inspection, sorting and analysis during manufacturing and processing in industry. These systems are typically aligned with industrial robots. This technology is often used to complement manual inspection/processing methods, resulting in higher efficiencies in processing and yielding. A typical machine vision system consists of a camera/imager, software, lighting, output device and a processor. Polarising beam splitters can be integrated into machine vision systems, typically in front of two CCD cameras. The measurement of the resulting polarisation gives users more insight, and one key application is helping to facilitate material identification in metal and dielectric materials. LASER COMPONENTS manufactures beam splitters as both thin film polarisers and cubes in UV fused silica and BK7. Type I polarising beam splitters are those whose mechanism of polarisation separation is a result of coating. Polarisation separation of type II is the result of birefringence and can be produced from Barium Borate (α-BBO) crystal as an alternative to calcite. The thin film polarisers are used for applications with the highest power densities, producing maximum extinction ratio for a single angle of incidence that is in the range of 56°±3°. Thin film polarisers can be offered as narrowband or broadband and tailored to the customer’s operating wavelengths. High precision surface figure (Lambda/8) and surface quality (20-10) can be manufactured ensuring minimal beam scattering and distortion, allowing for highly sensitive machine vision systems. More Information https://www.lasercomponents.com/uk/product/polarizing-beam-splitter-cubes-1/ |
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