84-284 30mm Dia. x 90mm FL Uncoated; UV Plano-Convex Lens

The 84-284 is a 30mm diameter, 90mm focal length uncoated plano-convex lens, specifically designed for UV applications. Sourced from Edmund Optics, this lens is a spherical element with a base shape of a circle, offering a high level of customization for various optical systems.

The lens's geometry includes a 2.18mm edge thickness and a 5mm center thickness, providing a balance between weight and optical performance. The effective focal length (EFL) is 90mm, making it suitable for medium to long-range focusing applications. The radius of curvature (R1) is 41.26mm, and the back focal length (BFL) is 86.57mm, contributing to the overall optical design.

The lens material is fused silica (mal-1965), a high-quality, low-autofluorescence material, ideal for UV applications. The wavelength of 587.6nm is within the visible light spectrum, but due to the lens's UV-optimized design, it can effectively transmit and focus UV light.

This lens does not come with any coating, allowing users to apply their preferred coating based on their specific application requirements. The uncoated version offers a cost-effective solution while maintaining high optical quality.