This is a G063347525 model double-concave lens, manufactured by Qioptiq Photonics, featuring a 22.4 mm diameter and a center thickness of 1.5 mm. The lens is designed with a negative focal length (EFL) of -50mm, making it suitable for a variety of applications that require concave lenses.
The lens is made from UVFS material with a Mal-1965 ID. It is designed to work with a wavelength of 355nm, and it comes with a front and back coating of Qio Bbar Arb2nirnbk7, which enhances its performance and durability.
The lens geometry is spherical, with inner and outer radii of 0mm, and radii of curvature R1 and R2 of -50.481mm and 50.481mm respectively. This specific lens model is mounted and fused silica, making it a robust and reliable choice for your optical needs.
According to the vendor's information, this item is currently in stock and can be purchased directly from the Qioptiq Photonics website. The link to the product page is provided for your convenience.