This is the G052318400 12.7 mm Dia. UVFS Mounted Plano-Concave Lens, a high-quality optical component sourced from Qioptiq Photonics. The lens, which has a plano-concave geometry, is designed with a base shape of a circle and a spherical shape. It is mounted and fused with UVFS material, specifically identified as UVFS mal- 1965 in the item data.
The lens has a diameter of 12.7 mm and a center thickness of 5.8 mm. The effective focal length (EFL) is -200mm, indicating that it is a diverging lens. The first radius of curvature (R1) is -100mm, while the inner and outer radii are both 0mm.
The lens is coated with Qio Silver RAGV 45 on both the front and back surfaces. This coating is specifically designed for use at a wavelength of 355nm. The item data also indicates that this lens is in stock and available for immediate purchase.
For more detailed information, please refer to the vendor's website at https://www.qioptiq-shop.com/en/Precision-Optics/Singlets/Plano-Concave-Lenses/Plano-concave-lenses-mounted-fused-silica.html.