This is the G340160322 12.7 mm Dia. UVFS Plano-Concave Lens, a high-quality optical component sourced from Qioptiq Photonics. This lens is designed for use in the UVFS material with a wavelength of 355nm, and it features a broad spectral range of 450-700nm.
The lens is spherical in shape, with a base shape of circular. It has a diameter of 12.7mm and a center thickness of 4mm. The effective focal length (EFL) of this lens is -20mm, indicating its concave nature. The inner and outer radii are 0, and the first radius of curvature (R1) is -10.002mm.
The lens is made from UVFS material with the ID 1965. It comes with a front and back coating of Qio Bbar Arb2visnbk7, providing excellent optical performance and durability. This lens is currently in stock and available for purchase through the provided weblink.