This is a Plano-Convex lens, type of spherical lens, sourced from Edmund Optics. It is designed for use in the Near-Infrared II (NIR II) spectrum, specifically for wavelengths between 750nm and 1550nm. The lens has a circular base shape with a diameter of 6.0mm and a thickness of 1.6mm at the center, reducing to 0.83mm at the edge.
The lens features an effective focal length (EFL) of 12.0mm and a back focal length (BFL) of 10.94mm. The front and back surfaces of the lens are coated with the EDM NIR-II standard curve coating, which is specifically designed for use in the NIR II spectrum.
The lens is made from N-BK7 Schott glass, a common material for optical elements due to its excellent optical properties and high damage threshold. The lens is inked, which is a process that adds a dye to the lens to enhance contrast and make it easier to handle and align during assembly.
This lens is a great option for applications that require high-quality imaging in the NIR II spectrum, such as biomedical imaging, night vision, and spectral analysis. It is available for purchase directly from Edmund Optics, and the link provided leads to the product page for this specific lens.