This is a PLCC-50.8-257.5-C, a 50.8 mm diameter Plano-Concave Spherical Lens, manufactured by CVI Laser Optics. The lens is made of N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties and high damage threshold. This lens is specifically designed for laser applications, ensuring high-quality performance and durability.
The lens features a concave radius of curvature of -257.5 mm, providing a focal length of -500 mm. This negative focal length makes it suitable for use in beam expanding or collimating applications. The lens has a center thickness of 7 mm, contributing to its robustness and stability.
Notably, this lens is uncoated. While coatings can enhance the performance of lenses by reducing reflection, increasing transmission, or providing environmental protection, an uncoated lens can be advantageous in certain applications where specific coatings may interfere with the desired optical properties.
The lens data is available for download from the CVI Laser Optics website, providing further details and specifications. This lens is currently in stock, ensuring quick delivery and minimal lead time.