The 111-1240E is a double-convex lens, a type of spherical lens, sourced from EKSMA Optics. With a diameter of 25.4 mm, it is designed for use in ultraviolet light applications at a wavelength of 355 nm. The lens has a center thickness of 3 mm and an edge thickness of 2.7 mm, providing a robust structure for various optical setups.
The lens's focal length is 500 mm, indicated by its effective focal length (EFL) value. This long focal length makes it suitable for applications requiring a narrow field of view or high magnification. The first and second radii of curvature are 475.6 mm and -475.6 mm, respectively, which contribute to the lens's double-convex shape.
The 111-1240E lens is made from UVFS MAL-1965 material, a specific type of optical glass with unique properties suitable for UV applications. The lens does not come with any coating, which may be a consideration depending on the user's specific application requirements.
For more information and to check availability, consult the vendor's website at http://eksmaoptics.com/optical-components/lenses/uv-fs-biconvex-lenses/.