The 67-469-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 6.0mm, is designed for use in the Near-Infrared II (NIR II) spectrum, specifically for wavelengths between 750nm and 1550nm.
The lens features a front and back coating of edm nir-ii std curve, which is specifically designed for use in the NIR II spectrum. This coating enhances the lens' performance in this spectrum, providing superior image quality and light transmission.
The lens has a thickness of 1.36mm at the edge and 1.6mm at the center. The effective focal length (EFL) of the lens is 36mm, making it suitable for a variety of optical applications. The lens's front radius of curvature (R1) is 18.61mm, and the back focal length (BFL) is 34.95mm.
The lens is made from n-bk7 schott, a high-quality optical glass that is known for its excellent optical properties. This material ensures the lens provides clear, distortion-free images.
The lens is inked, which is a process that adds a dye or pigment to the lens. This can be used for a variety of purposes, such as marking the lens for identification or adding a protective coating.