67-489 10.0mm Dia. x 40.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

This is a Plano-Convex lens, type 67-489, with a diameter of 10.0mm and a focal length of 40.0mm, specifically designed for use in the Near-Infrared II (NIR II) spectrum, covering the wavelength range of 750-1550nm. The lens is sourced from the reputable vendor, Edmund Optics.

The lens is made of the high-quality material n-BK7 Schott, a borosilicate glass known for its excellent optical properties, including low dispersion and high transmission in the visible and near-infrared regions. The lens geometry includes a thickness of 1.99mm at the edge and 3mm at the center, with an effective focal length (EFL) of 25mm and a radius of curvature (R1) of 12.92mm.

The lens features a standard NIR II coating on both the front and back surfaces, providing enhanced transmission and reduced reflection in the NIR II range. This coating is part of Edmund Optics' NIR II standard curve, ensuring consistent performance across different components.

The lens is spherical in shape, which is a common geometry for optical lenses due to its ease of manufacturing and good optical performance. The lens is circular in base shape, making it compatible with a wide range of optical systems and setups.

The item data indicates that this lens is in stock, making it readily available for immediate use in your optical projects. For more information, including detailed specifications and purchasing options, please refer to the provided weblink.