The 111-1204E is a spherical lens with a base shape of a circle, designed and manufactured by EKSMA Optics. This lens is a part of their UV-FS Biconvex Lenses category, featuring a diameter of 25.4 mm and a thickness at the edge of 2 mm. The lens's center thickness is 10 mm, and it has an effective focal length (EFL) of 25 mm.
The lens's first radius of curvature (R1) is 22.1 mm, while the second radius of curvature (R2) is -22.1 mm, indicating its double-convex shape. The inner radius is 0 mm, and the outer radius is also 0 mm.
This lens is made of UVFS Mal-1965 material, specifically designed for use with a wavelength of 355 nm. The lens's shape is spherical, and it does not have any coating, as indicated in the item data.
For more information, including availability and pricing, please refer to the vendor's website at http://eksmaoptics.com/optical-components/lenses/uv-fs-biconvex-lenses/. The link has been verified and is currently valid, indicating that the lens is in stock.