LE5243 12.7 mm Dia. CaF2 Positive Meniscus Lens; EFL=50mm Uncoated

The LE5243 is a spherical lens with a convex-concave design, sourced from the reputable vendor Thorlabs. This lens boasts a 12.7 mm diameter and a positive meniscus shape, making it an ideal choice for various optical applications.

The lens's geometry is meticulously designed, with an outer radius of 0 and an inner radius of 0, indicating a uniform curvature. The edge thickness is 2 mm, while the center thickness is 3 mm, providing a balanced structure for efficient light transmission. The Effective Focal Length (EFL) is 50 mm, a standard value that ensures compatibility with many optical systems.

The lens is crafted from Calcium Fluoride (CaF2), a material with the Mal-1963 designation, known for its excellent optical properties. It is particularly suitable for use in the ultraviolet (UV), visible, and near-infrared (NIR) regions of the spectrum, up to a wavelength of 4000 nm.

Notably, this lens is uncoated, which means it does not have any anti-reflective or other surface coatings. While this may result in higher reflective losses, it also means the lens is less susceptible to damage from environmental factors or handling.

For more detailed information, including availability and pricing, please refer to the vendor's website using the provided web link.