45-869 9mm Dia. x 27mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm

The 45-869 is a high-quality double-convex lens, sourced from the renowned optical components manufacturer, Edmund Optics. This lens, with a 9mm diameter and a focal length of 27mm, is designed for use within the visible to near-infrared spectrum, spanning 400-1000nm.

The lens is crafted from the high-grade material, n-BK7 Schott, which is known for its excellent optical properties, including a low refractive index and low dispersion. This makes the lens ideal for a wide range of applications, from imaging and metrology to beam shaping and focusing.

The lens features a double-convex geometry, with radii of curvature of 27.43mm and -27.43mm for the first and second surfaces, respectively. This geometry provides a high degree of focusing power, making the lens suitable for use in high-precision optical systems. The lens has an edge thickness of 2mm and a center thickness of 2.74mm, contributing to its robustness and durability.

The lens is coated with a broadband anti-reflection coating, specifically the EDM VIS-NIR 0SP2002000 coating, on both the front and back surfaces. This coating is designed to reduce surface reflections and increase transmission within the specified wavelength range, further enhancing the lens's performance in optical systems.