SBC031AR.10 25.4 mm Dia. x -75 mm FL; AR coated; Double-Concave Lens 245-440nm

The SBC031AR.10 is a high-quality double-concave lens, designed and manufactured by MKS/Newport. This lens, with a base shape of a circle, is specifically engineered for use in the ultraviolet spectrum, with a wavelength range of 245-440nm. The lens has a diameter of 25.4mm and a center thickness of 2.5mm, ensuring a compact and efficient design.

The lens features an anti-reflective (AR) coating on both the front and back surfaces, identified as "new ar-10 fromfigure". This coating is crucial for applications that require minimal light loss and high transmission, such as in imaging systems, spectroscopy, and other optical instruments. The AR coating enhances the lens's performance by reducing surface reflections and increasing the overall system's efficiency.

The lens's geometry is another notable feature. It has a large negative focal length (FL) of -75mm, which is typical for double-concave lenses. The first and second radii of curvature (r1 and r2) are -69.241mm and 69.241mm, respectively, indicating the concave shape of the lens. The back focal length (BFL) is -75.85mm, and the lens does not have an inner or outer radius, suggesting a uniform curvature throughout.

The lens is made from UVFS Mal-1965, a material specifically chosen for its optical properties in the ultraviolet range. The information provided indicates that this lens is in stock and available for immediate purchase, making it a reliable choice for users seeking a high-performance, double-concave lens for ultraviolet applications.