This is a high-quality Double-Convex Lens, model KBX145AR.18, designed for use in the infrared spectrum, specifically between 1000nm and 1550nm. The lens, sourced from the reputable vendor MKS/Newport, boasts a diameter of 50.8mm and a focal length of 62.9mm, making it suitable for a wide range of optical applications.
The lens is made from the high-grade material n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties and durability. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature of 62.579mm on both sides. This geometry ensures a wide field of view and low distortion, making it ideal for imaging applications.
The KBX145AR.18 lens comes with a new AR-18 coating on both the front and back surfaces. This anti-reflective coating is specifically designed for the infrared spectrum, reducing surface reflections and increasing transmission. The coating also provides excellent environmental stability, ensuring the lens maintains its performance even in harsh conditions.
The lens has a center thickness of 13.773mm and an edge thickness of 3mm, providing excellent mechanical stability. The effective focal length (EFL) is 62.9mm, and the back focal length (BFL) is 58.18mm. The lens is in stock and ready for immediate use.