LE5801 25.4 mm Dia. CaF2 Positive Meniscus Lens; EFL=50mm Uncoated

The LE5801 is a spherical lens with a convex-concave design, sourced from the reputable vendor Thorlabs. This lens boasts a 25.4 mm diameter and a positive meniscus shape, making it suitable for a wide range of optical applications. The lens's effective focal length (EFL) is 50mm, providing a versatile focal range for various setups.

The lens is made from CaF2 (Calcium Fluoride) material, identified as "caf2 mal-1963" in the Material ID. This material is known for its excellent transparency in the ultraviolet, visible, and near-infrared regions of the spectrum, making the LE5801 a reliable choice for applications that require high transmission across a broad wavelength range.

The geometry of the lens includes a thickness of 2mm at the edge and 7.1mm at the center. The inner and outer radii are 0, and the lens's back focal length (BFL) is 43.3mm. The lens is uncoated, which may be a consideration depending on the specific application and environmental conditions.

For more detailed information, please refer to the vendor's website, where you can find the product in stock and available for purchase. The provided weblink has been verified and is currently valid.