48-047 12.0mm Dia. x -30 FL; Uncoated; UV Plano-Concave Lens

The 48-047 is a 12.0mm diameter Plano-Concave lens with a focal length of -30mm, sourced from Edmund Optics. This lens is designed for use in ultraviolet (UV) applications, making it suitable for a wide range of scientific and industrial uses.

The lens is uncoated, which means it does not have any additional layers to protect it or enhance its performance. This can be advantageous in certain applications where the introduction of additional layers could interfere with the desired optical properties. However, it's important to note that uncoated lenses can be more susceptible to damage from environmental factors and may not perform as well in high-light conditions.

The geometry of the lens includes a thickness of 3.24mm at the edge and 2.0mm at the center. The inner and outer radii are both 0mm, indicating a flat surface on one side and a curved surface on the other. The curvature of the lens is defined by a radius of -13.75mm on the curved side.

The lens is made from fused silica, a material with a high transmission rate in the UV range. This makes it an ideal choice for UV applications. The material is identified as "fused sil mal-1965" in the item data, which likely refers to a specific type or grade of fused silica.

The lens is designed to operate at a wavelength of 587.6nm, which is in the visible light spectrum. However, its UV transmission capabilities make it suitable for use with UV light sources.