The SLB-25-170PM is a Plano-Convex lens, a type of spherical lens, sourced from OptoSigma. This lens has a base shape of a circle and is designed for use within the wavelength range of 400-700nm, making it suitable for a wide range of optical applications.
The lens has a diameter of 25.0 mm and a focal length of 170.0 mm. The edge thickness of the lens is 2.0 mm, while the center thickness is 2.9 mm. The effective focal length (EFL) is 170.1 mm, and the back focal length (BFL) is 168.1 mm. The lens is made from n-bk7 schott material, a common choice for its high Abbe number and low dispersion.
The SLB-25-170PM lens features a coating on both the front and back surfaces. This coating, identified as 'opt m', is designed to enhance the lens' performance by reducing reflection and increasing transmission. The coating status is currently 'in stock', according to the vendor's website.