AL50100M 50 mm Dia. N-BK7 High-Precision; CNC Polished Aspheric Lenses; EFL=100 mm; NA=0.24 Uncoated

The AL50100M is a high-precision asperic lens offered by Thorlabs, a leading global manufacturer of photonics equipment. This lens, with a diameter of 50 mm, is made from N-BK7, a popular glass type in the optical industry due to its excellent optical properties and high damage threshold.

The lens features an effective focal length (EFL) of 100 mm, making it suitable for a wide range of applications that require moderate magnification. The numerical aperture (NA) of 0.24 indicates a high light-gathering capability, which can be beneficial in low-light conditions or when high resolution is required.

The lens's aspheric design, combined with CNC polishing, ensures high-quality imaging with minimal spherical aberration. This is further enhanced by the lens's unique geometry, which includes specific radii (r1 and r2), thicknesses at the edge and center, and aspheric coefficients (a2 to a16). These parameters are carefully controlled during the manufacturing process to ensure the lens delivers superior optical performance.

Notably, the lens is uncoated, which means it does not have any additional layers to enhance its optical properties or protect it from environmental factors. This might be a consideration depending on the specific application and operating conditions.

According to Thorlabs' website, the lens is currently in stock, indicating its availability for immediate purchase and delivery. The product link provided in the item data leads to the lens's dedicated page on Thorlabs' website, where users can find more detailed specifications, related products, and purchasing information.