This is the G312322400 model from Qioptiq Photonics, a 25.4 mm diameter N-BK7 Plano-Convex lens with an effective focal length (EFL) of 80mm. The lens is spherical in shape, featuring a plano-convex base shape and a circular geometry.
The lens has a thickness of 2mm at the edge and 4mm at the center. The inner radius is 0mm, and the outer radius is also 0mm. The lens is made of N-BK7 Schott material, a popular choice for its excellent optical properties and high damage threshold.
The lens is coated with Qio Silver RAGV 45 on both the front and back surfaces, providing superior reflectivity and durability. The lens is designed to operate at a wavelength of 588nm.
The lens is currently in stock and can be purchased directly from the Qioptiq Photonics website. The provided weblink leads directly to the product page for easy access and purchase.