The KBC040AR.18 is a high-quality double-concave lens, designed and manufactured by MKS/Newport. This lens, with a diameter of 25.4 mm, is specifically engineered for use within the infrared spectrum, between 1000 and 1550 nanometers.
The lens features a base shape of a circle, with a thickness at the edge of 4.19 mm and a center thickness of 2.5 mm. The effective focal length (EFL) is -75 mm, making it a powerful tool for focusing and diverging light in various applications. The first radius of curvature (R1) is -77.943 mm, while the second radius (R2) is 77.943 mm, indicating the double-concave nature of the lens.
The lens is made from N-BK7 Schott, a popular material in optical systems due to its excellent optical properties and high damage threshold. The lens is coated with New AR-18 fromfigure on both the front and back surfaces, enhancing its performance in the infrared spectrum.
This lens is a spherical lens, meaning it has a single curve on each surface. The inner and outer radii are both 0, indicating a simple, double-concave design.
The lens's web links are valid and indicate that it is currently in stock, making it an ideal choice for immediate use in various optical systems.