LA5835-E 25.4 mm Dia. CaF2 Plano-Convex Lens; EFL=1000mm 2-5µm

The LA5835-E is a Plano-Convex lens with a diameter of 25.4 mm, designed for use in the 2-5 µm wavelength range. This lens is sourced from Thorlabs, a reputable vendor known for its high-quality optical components.

The lens is made of Calcium Fluoride (CaF2), a material with a high transmission range, making it ideal for infrared applications. The lens has an effective focal length (EFL) of 1000mm, which is a crucial factor in determining the lens's magnification power.

The LA5835-E features a double-sided anti-reflection coating, specifically the tho ecaf2arc20005000 coating, which is designed to reduce surface reflections and increase transmission. The front and back of the lens are coated, ensuring optimal performance.

The lens's geometry includes a 2mm thickness at the edge and a 2.2mm thickness at the center. The lens's inner and outer radii are 0, indicating a plano-convex shape. The radius of curvature for the convex side is 433.9 mm.

This lens is a Spherical lens, a common type of lens used in various optical systems due to its simple design and manufacturing process. The Spherical shape allows for a consistent curvature across the lens surface, which is beneficial for focusing light.