The SLB-05-12PIR1 is a Plano-Convex lens, a type of spherical lens, sourced from OptoSigma. This lens, designed for use within the wavelength range of 633-1064nm, is made from the high-quality material n-bk7 schott. The lens has a diameter of 5.0 mm and a thickness of 1.2 mm at the edge, with a center thickness of 1.8 mm. The effective focal length (EFL) of this lens is 12 mm, and the front and back surfaces are coated with the opt ir1 coating. The inner and outer radii of the lens are 0, indicating a flat inner surface and a curved outer surface. This lens is designed for use in a variety of optical applications, and its detailed specifications make it a versatile and reliable choice for users.