Calomel IR polarizers are the only crystalline prismatic polarizers applicable in the mid-IR and LWIR spectral regions on the market. Beside the Calomel prismatic polarizers, only wire grid systems are currently available with no other birefringent crystal transparent above 6µm. The combination of Calomel´s two unique material properties: a high value of birefringence (Δn=0.683) and a wide transparency range (0.4μm-17μm), makes it a great material for mid-infrared polarizers and phase delay components. Our Calomel Wollaston polarizer is designed for the most demanding applications that require two separately accessible, high purity orthogonal linearly polarized beams. The air-spaced prism pair is assembled into a 30.0 mm diameter black anodized aluminium housing with a 10x10 mm clear aperture.
United Kingdom
Knight Optical offer a range of Stock BK7 Windows, for use within Wind Monitoring LiDAR Systems. These LiDAR systems are used in monitoring wind speeds and wind direction. The data accumulated can be used to generate a Digital Terrain Model or a Digital Elevation Model which are 3D representations of terrain. BK7 is one of the most widely used optical glasses available for use in the range from visible up to the near infrared. Making it ideal as a protective optical window for Wind LiDAR systems which operate at 1500-1560nm. The BK7 can offer an uncoated average transmission of 92% between 300nm and 2000nm. SEE PDF for Full Details
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Befort Wetzlar is mentioned and recommended in the relevant Internet forums as a coater of telescope mirrors. We serve customers in astronomy, natural sciences and technology, supporting users with our technical knowhow. After all, you can't enjoy the best possible view of the universe without maximum reflectivity and robust mirrors.
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We offer optical brightners In guaranteed quality, at stable prices and packed appropriately for transportation. Do you need advice on choosing your product or are you looking for a suitable substitution? Our application and product experts are happy to help! Our experience and deep knowledge in the area of specialty chemicals and ingredients ensures that we are well positioned to effectively support both our customers and our suppliers with product and application expertise. Please contact us for more information!
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Differentiation between ANSI and DIN / EN ANSI eyeglass blinds differ from DIN / EN eyeglass blinds in terms of pressure levels, sealing strips and materials. In German-speaking countries, glasses blind disks are also called blind disks or throttle disks. However, the English terms “spectacle blind”, “blind paddle” are also often used in Germany. Pressure ratings according to ANSI in lbs The following pressure levels for blind disks according to ANSI are available 150, 300, 600, 900 and 1500 lbs. Sealing strips The following forms of sealing strips are available: SMF, FF, RF and RTJ. Materials The steel materials A 516 GR 60 and A 516 GR 70 are available. In the stainless steel sector, the materials TP 304 / L, TP 316 / L and TP 312 are possible.
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