This is a G313217331 22.4 mm Dia. N-BK7 Double-Concave Lens, with a focal length (EFL) of -150mm. The lens is sourced from Qioptiq Photonics, a reputable vendor in the field of precision optics.
The lens is of the Spherical type, specifically a Spherical Lens with a Concave-Concave base shape. It has a circular geometry with a diameter of 22.4mm and a center thickness of 1.5mm. The inner and outer radii are both zero, indicating a symmetrical design.
The lens is made from N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties. The wavelength of operation is 588nm.
The lens features a coating on both the front and back surfaces. The coating is Qio Al Ralvis Aoi 45, which is designed to enhance the lens's performance in specific applications.
This lens is currently in stock and available for purchase. For more information, please refer to the vendor's website using the provided weblink.