The 111-1430E is a double-convex lens, characterized by its spherical shape and circular base. This lens, sourced from EKSMA Optics, boasts a diameter of 38.1 mm and a center thickness of 5 mm, with an edge thickness of 4 mm. The lens is designed with an effective focal length (EFL) of 400 mm, making it suitable for applications that require long-range focusing.
The lens is fabricated from UVFS MAL-1965, a material specifically designed for use in the ultraviolet spectrum at a wavelength of 355 nm. This material choice ensures high transmittance and minimal absorption in the UV range.
Notably, this lens is uncoated. While coatings can enhance the performance of lenses by reducing surface reflections, increasing durability, or adding specific spectral characteristics, an uncoated lens offers simplicity and cost-effectiveness. It is ideal for applications where such enhancements are not necessary or where the user prefers to apply their own custom coatings.
For more information, including pricing and availability, please refer to the vendor's website at http://eksmaoptics.com/optical-components/lenses/uv-fs-biconvex-lenses/. The link has been verified and the lens is currently in stock.