45-802 25 mm Dia. N-LAK22/N-SF6 Achromatic Doublet; EFL=45mm NIR II 750-1550nm

The 45-802 is a high-quality achromatic doublet lens, boasting a 25 mm diameter and an effective focal length of 45mm, specifically designed for use in the near-infrared spectrum (750-1550nm). This lens is sourced from the renowned optical vendor, Edmund Optics, and is part of their extensive catalog of optical elements.

The lens is constructed from two types of Schott glass, N-LAK22 and N-SF6, which are carefully selected and arranged to minimize chromatic aberration, a common issue in optical systems. The geometry of the lens is meticulously designed, with a thickness of 9.59mm at the edge, a central thickness of 9mm, and a central thickness 'a' of 4mm. The lens curvature is also precisely controlled, with radii 'r1', 'r2', and 'r3' set at 29.01mm, -25.53mm, and -132.92mm respectively.

The 45-802 lens features a coating of EDM NIR-II STD CURVE on both the front and back surfaces. This coating is specifically designed to optimize performance in the near-infrared spectrum, ensuring high transmission and minimal reflection.

The lens is currently in stock and available for immediate purchase. For more information, including pricing and detailed specifications, please refer to the product webpage at https://www.edmundoptics.com/p/25mm-dia-x-45mm-fl-nir-ii-coated-achromatic-lens/6250/.