45-881 15mm Dia. x 30mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm

The 45-881 is a high-quality double-convex lens, 15mm in diameter and 30mm in focal length, sourced from the renowned optical components manufacturer, Edmund Optics. This lens is specifically designed for use within the visible to near-infrared spectrum, spanning 400-1000nm, making it suitable for a wide range of optical applications.

The lens boasts a base shape of a circle, with a 30.5mm radius on the first surface and a -30.5mm radius on the second surface, contributing to its double-convex geometry. The edge thickness measures at 2.13mm, while the center thickness is 4mm, providing a robust structure for various applications. The effective focal length (EFL) is 30mm, and the back focal length (BFL) is 28.82mm, ensuring precise focusing capabilities.

The 45-881 lens is crafted from the highly-regarded N-BK7 glass from Schott, a material known for its excellent optical properties and versatility. The lens features a broadband anti-reflection coating, both on the front and back surfaces, identified as 'edm visnir0sp2002000'. This coating enhances the lens' performance by minimizing surface reflections and increasing transmission within the specified wavelength range.