47-916 20mm Dia. x -20mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm

The 47-916 is a high-quality double-concave spherical lens, sourced from the renowned optical components manufacturer, Edmund Optics. This lens boasts a 20mm diameter and a focal length of -20mm, making it a versatile choice for a wide range of optical applications.

The lens is crafted from n-SF11 Schott glass, a material known for its excellent optical properties and durability. The double-concave design, characterized by its negative focal length, is ideal for use in imaging systems, beam expanders, and other applications where light needs to be spread over a larger area.

The lens features a broad wavelength range of 425-675nm, covering a significant portion of the visible light spectrum. This makes it suitable for use in a variety of applications, including fluorescence microscopy, machine vision, and other imaging systems.

The lens is coated with the EDM VIS-0 STD curve on both the front and back surfaces. This anti-reflection coating is designed to minimize surface reflections and increase transmission, enhancing the overall performance of the lens. The coating is specifically tailored for use in the visible spectrum, further optimizing its performance in its intended application range.