This is a Plano-Concave lens, type N-BK7, with a diameter of 25.4 mm and a center thickness of 1.5 mm. The effective focal length (EFL) of this lens is -50mm, designed for use with a wavelength of 588nm. The lens is sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics.
The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. The Plano-Concave shape of the lens is characterized by two spherical surfaces - one flat and one concave. This particular lens has an inner radius of 0 and an outer radius of 0, indicating a symmetrical curvature.
The lens is coated with Qio HP Nbar ARHS-YAG on both the front and back surfaces. This coating is designed to reduce reflection and enhance transmission, making the lens suitable for high-power laser applications.
The item data also provides a link to the vendor's website for further information and availability status. This lens is currently in stock, according to the provided data.