KPX119AR.18 25.4 mm Dia. x 600 mm FL; IR coated; Plano-Convex Lens IR 1000-1550nm

This is a Plano-Convex Lens, type KPX119AR.18, sourced from MKS/Newport. It is designed for use in the infrared spectrum, specifically between 1000nm and 1550nm. The lens has a diameter of 25.4mm and a focal length of 600mm, making it suitable for applications requiring a long focal length.

The lens is made from N-BK7 Schott glass, a popular choice for its high homogeneity and low auto-fluorescence. The base shape is circular, and the lens features a plano-convex geometry, meaning one side is flat while the other is curved. The edge thickness of the lens is 3mm, and the center thickness is 3.259mm.

The lens is coated with New AR-18 on both the front and back surfaces. This anti-reflective coating is designed to reduce surface reflections, thereby improving transmission and reducing ghosting and flare. The coating is effective over a wide range of wavelengths, from 1000nm to 1550nm.

The lens has an inner radius of 0, indicating it is a meniscus lens. The effective focal length (EFL) is 600mm, and the back focal length (BFL) is 597.85mm. The radius of curvature (R1) is 311.232mm.

The lens is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website at https://www.newport.com/f/ar18-n-bk7-plano-convex-lenses#products.