MF-px-50.8-2000 50.8 mm Dia. MgF2 Plano-Convex Lens; EFL=2000mm Uncoated

This MF-px-50.8-2000 is a 50.8 mm diameter Plano-Convex lens, sourced from Alkor Technologies. It is a Spherical Lens, with a Base Shape of Circular, designed for use in optical systems that require a long effective focal length (EFL) of 2000mm. The lens is made from Magnesium Fluoride (MgF2), a material known for its excellent transparency across a wide spectrum, including the ultraviolet region, making it suitable for applications involving shorter wavelengths such as 266nm.

The lens geometry is characterized by its diameter, thickness at the edge and center, and the curvature of its surfaces. The diameter measures 50.8mm, while the thickness at the edge is 2.5mm and 2.9mm at the center. The lens's design is Plano-Convex, meaning one surface is flat (Plano), and the other is curved (Convex). The curvature of the convex surface is defined by a radius (r1) of 809.1mm. The Inner Radius and Outer Radius are both zero, indicating that the lens does not have any threading or other features on its edges.

The lens is uncoated, meaning it does not have any additional layers applied to its surfaces to alter its optical properties. This can be beneficial in certain applications where a specific coating may interfere with the desired optical performance. However, it's important to note that uncoated lenses can be more susceptible to environmental factors such as dust and moisture, which can affect their performance over time.

For more information about this lens, including its availability and pricing, please refer to the vendor's website provided in the item data.