67-561 25.4mm Dia. x 38.1mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

This is a Plano-Convex Lens, sourced from the renowned optical components vendor, Edmund Optics. With a diameter of 25.4mm and a focal length of 38.1mm, it is designed for use in the Near-Infrared II (NIR II) spectrum, specifically catering to the wavelength range of 750-1550nm.

The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and wide transparency range. The lens features a standard curvature coating on both the front and back surfaces, specifically the EDM NIR-II STD curve. This coating enhances the lens' performance in the NIR II spectrum, providing improved transmission and reduced reflection.

The lens geometry includes a thickness of 2.9mm at the edge and 3.2mm at the center. The effective focal length (EFL) is 500mm, while the back focal length (BFL) is 497.89mm. The lens has a spherical shape, with an inner radius of 0mm and an outer radius of 0mm.

The lens is currently in stock and available for immediate purchase through the provided weblink. This detailed description should provide a comprehensive understanding of the lens' specifications and capabilities, aiding users in their search for optical components with similar properties.