This is the G052304329 optical lens from Qioptiq Photonics, a Plano-Concave Spherical Lens with a diameter of 8 mm and a center thickness of 1 mm. The lens is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties and wide transparency range. The lens has a negative focal length (EFL) of -8 mm, making it suitable for use in various applications that require light convergence.
The lens is coated with Qio HP Nbar ARHS-YAG on both the front and back surfaces, providing high performance and durability. This coating is designed to reduce reflection and increase transmission, making it ideal for use in high-power laser applications.
The lens is mounted, making it ready for immediate use in your optical system. The web link provided leads to the product page on Qioptiq's website, where you can find more information and check the current stock status.