67-587-INK 50.0mm Dia. x 200.0mm FL; NIR II; Inked; Plano-Convex Lens NIR II 750-1550nm

This is a Plano-Convex lens, specifically designed for use in the Near-Infrared II (NIR II) spectrum, with a diameter of 50.0mm and a focal length of 200.0mm. The lens is sourced from Edmund Optics, a leading vendor in the optical industry, and is currently in stock.

The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number. The lens features a spherical shape, with a front radius (R1) of 64.6mm and a back focal length (BFL) of 118.39mm. The lens has an effective focal length (EFL) of 125mm, which is the distance from the lens's secondary principal plane to the image point, where the image is in focus.

The lens is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces. This coating is specifically designed for use in the NIR II spectrum, enhancing transmission in this range (750-1550nm). The lens has a thickness of 4.97mm at the edge and 10mm at the center.

This lens is a great choice for applications that require high-quality imaging in the NIR II spectrum, such as biomedical imaging, night vision, and spectral analysis. Its large diameter and long focal length make it suitable for use in systems with large fields of view and high magnification.