This is a Plano-Convex lens, type of spherical lens, with a circular base shape and a diameter of 9.0mm. The lens has a thickness of 1.78mm at the edge and 2.0mm at the center, with an effective focal length (EFL) of 90.0mm. The front and back surfaces of the lens have a radius of curvature of 46.51mm and 88.68mm respectively. The lens does not have any inner or outer radius.
The lens is made of N-BK7 Schott material, a popular choice for optical elements due to its excellent optical properties. The lens is coated with a standard VIS 0° coating on both the front and back surfaces, which is designed to provide high transmission in the visible spectrum (425-675nm). This coating helps to reduce reflection and increase the overall efficiency of the lens.
The item data is provided by Edmund Optics, a leading supplier of optical components. The link to the product page is valid and the product is in stock, according to the provided information.