The 84-294 is a UV Plano-Convex Lens, 30mm in diameter and with a focal length of 90mm, offered by Edmund Optics. This lens is designed for use with ultraviolet light, specifically within the wavelength range of 250-425nm.
The lens is made from fused silica, a material known for its excellent transmission properties in the UV range. The front and back surfaces of the lens are coated with a UV-AR coating, which is standard for Edmund Optics and provides superior anti-reflective performance. This coating helps to minimize surface reflections and improve transmission, making the lens ideal for high-performance UV applications.
The lens has a spherical shape, with a plano-convex geometry. The radius of curvature for the convex surface is 41.26mm, and the lens has a clear aperture of 30mm. The edge thickness of the lens is 2.18mm, while the center thickness is 5mm. The back focal length of the lens is 86.57mm, and its effective focal length is 90mm.
According to the provided data, this lens is currently in stock and available for purchase. The product link provided leads to the vendor's website, where more information and specifications can be found. This lens is a great choice for anyone needing a high-quality UV lens for their optical system.