This is the PLCX-50.8-386.3-C, a Plano-Convex Laser Grade Spherical Lens, sourced from CVI Laser Optics. The lens boasts a 50.8 mm diameter and is made from N-BK7 Schott, a popular material for its excellent optical properties. The lens's design includes a 386.3 mm radius on the curved face, with a center thickness of 6.4 mm and an edge thickness of 5.6 mm.
The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, it is still suitable for various applications due to its high-quality base material. The effective focal length (EFL) of this lens is 750 mm, making it ideal for use in systems where a long focal length is required.
The lens is designed for use with a wavelength of 546.1 nm, which is within the visible light spectrum. This makes it suitable for applications that require precise focusing or imaging within this wavelength range.