84-281 15mm Dia. x 75mm FL Uncoated; UV Plano-Convex Lens

The 84-281 is a 15mm diameter, 75mm focal length uncoated plano-convex lens, designed for use in the ultraviolet (UV) spectrum. This lens is sourced from Edmund Optics, a leading provider of optical components.

The lens features a base shape of a circle, with a planar surface on one side and a convex surface on the other. The convex surface has a radius of curvature of 34.39mm, contributing to a back focal length of 72.94mm. The lens's thickness varies from 2.17mm at the edge to 3mm at the center, providing a balanced structure for various applications.

The lens is made from fused silica, a material with a high transmission rate in the UV spectrum, making it ideal for UV applications. The material's refractive index is 1.4588 at the specified wavelength of 587.6nm.

Notably, this lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. This may result in a higher risk of surface damage and lower light transmission compared to coated lenses. However, it can be advantageous in applications where cost, simplicity, or specific optical characteristics are priorities.