This is a Plano-Concave lens with a diameter of 12.7 mm, sourced from Qioptiq Photonics. The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. The lens has a center thickness of 1.5 mm and an effective focal length (EFL) of -100 mm at a wavelength of 1064 nm.
The lens's concave surface has a radius of curvature (R1) of -51.212 mm. The lens's inner and outer radii are both 0, indicating that the lens has a uniform thickness. The lens's shape is spherical, which is a common shape for optical lenses due to its simplicity and versatility.
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 increase transmission, making the lens more efficient in transmitting light. The lens is currently in stock and available for purchase on the Qioptiq Photonics website.