49-469 9mm Dia. x 45mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm

The 49-469 is a high-quality double-convex lens, boasting a 9mm diameter and a focal length of 45mm. This lens is sourced from the reputable vendor, Edmund Optics, and is currently in stock. The lens is designed for use within the near-infrared spectrum, specifically between 600-1050nm, making it ideal for a range of applications that require precise infrared optical performance.

The lens is constructed from Schott's n-BK7 glass, a material well-known for its excellent optical properties, including a high Abbe number and low dispersion. This makes the lens particularly suitable for applications that require high image quality and low chromatic aberration.

The 49-469 features a standard coating on both the front and back surfaces. This coating, designated as 'edm nir-i std curve', is specifically designed to enhance the lens' performance within the near-infrared spectrum. It aids in reducing surface reflections and increasing transmission, thereby improving the overall efficiency and quality of the optical system in which it is used.

The lens' geometry is also noteworthy. It has a center thickness of 2.5mm and an edge thickness of 2.06mm, providing a robust and durable structure. The lens' radii are 46.08mm and -46.08mm, respectively, contributing to its double-convex shape. The back focal length is 44.17mm, and the effective focal length is 45mm. The lens' inner and outer radii are both zero, indicating a uniform curvature across the lens surface.