The 67-459-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 (NIR) spectrum, specifically between 750-1550nm, as indicated by its NIR II coating.
The lens features a front and back coating of edm nir-ii std curve, which is standard for this type of lens. The base shape is circular, and the lens has a thickness of 1.42mm at the edge and 2.5mm at the center. The effective focal length (EFL) is 6mm, and the radius of curvature (R1) is 4.71mm. The back focal length (BFL) is 4.6mm, and the lens does not have an inner or outer radius.
This lens is made from n-sf11 schott, a material known for its excellent optical properties in the NIR spectrum. The lens is inked, which is a common practice to facilitate handling and identification.
The lens's detailed parameters and specifications make it suitable for various applications within the NIR spectrum. It is available for purchase directly from the vendor, as indicated by the valid in-stock status on the product's webpage.