49-548 12mm Dia. x -24mm FL; NIR I Coated; Double-Concave Lens 600-1050nm

The 49-548 is a high-quality double-concave lens, 12mm in diameter and featuring a focal length of -24mm. This lens is sourced from Edmund Optics, a renowned vendor known for their extensive catalog of optical elements. The lens is designed for use within the near-infrared spectrum, specifically between 600-1050nm, making it ideal for a variety of applications within this range.

The lens is constructed from n-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. It features a standard curve coating on both the front and back, specifically the EDM NIR-I std curve. This coating is designed to enhance the lens' performance within the near-infrared spectrum, providing improved transmission and reduced reflection.

The geometry of the lens is carefully crafted, with an inner radius of 0 and an outer radius of 0. The thickness at the edge of the lens is 3.31mm, while the thickness at the center is 2mm. The back focal length (BFL) is -24.65mm, and the effective focal length (EFL) is -24mm. The lens' base shape is circular, and its type is spherical, which is a common choice due to its ease of manufacturing and good optical performance.

The lens' specifications make it suitable for a wide range of applications within the near-infrared spectrum. It is currently in stock, according to the vendor's website, and further information can be found at the provided weblink.