The 112-1219E is a Plano-Concave Lens, a type of spherical lens, sourced from EKSMA Optics. This lens is characterized by its circular base shape and uncoated surface. The lens has a diameter of 25.4 mm and a thickness at the edge of 4 mm, while the center thickness is 3.1 mm. The effective focal length (EFL) of this lens is -200 mm, indicating its diverging nature.
The lens's concave surface has a radius of curvature (R1) of -95.1 mm. The inner and outer radii are both 0 mm, suggesting that this lens does not have any peripheral curvature. The lens is made from UVFS Mal-1965 material, optimized for use at a wavelength of 355 nm.
This lens is a part of EKSMA Optics' extensive catalog of optical components, which includes various types of lenses. The weblink provided leads to the specific page on their website where this lens and similar products can be found. The link status indicates that the lens is currently in stock, ready for immediate purchase and use.