32-479 25.0mm Dia. x 75.0mm FL Uncoated; Plano-Convex Lens

The 32-479 is a 25.0mm diameter, 75.0mm focal length uncoated plano-convex lens sourced from Edmund Optics. This lens is a spherical lens with a base shape of a circle, designed for use in a wide range of optical applications.

The lens's geometry includes a thickness edge of 2.43mm and a thickness center of 4.5mm, providing a solid structure suitable for various optical systems. The effective focal length (EFL) is 75mm, and the radius of curvature (R1) is 38.76mm, contributing to its plano-convex shape. The back focal length (BFL) is 72mm, and both the inner and outer radii are 0mm, indicating a uniform curvature.

The lens is made of N-BK7 Schott material, a popular choice for its high refractive index and low dispersion. It is designed to work with a wavelength of 587.6nm, making it suitable for applications that require high precision and clarity in the yellow-green spectrum.

Notably, this lens is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surface. This may result in higher reflectivity and lower transmission compared to coated lenses, but it can also simplify the design and reduce the cost of optical systems.