This is the PLCC-50.8-515.1-UV, a laser grade plano-concave lens from CVI Laser Optics. The lens, which is uncoated, has a diameter of 50.8 mm and a center thickness of 6.4 mm. The effective focal length (EFL) of this lens is -1000mm, making it suitable for a variety of applications that require concave lenses.
The lens is made from UVFS material, specifically UVFS Mal-1965, which is known for its high transmission in the ultraviolet range. This makes the lens ideal for use in UV applications. The lens is spherical in shape, with a radius of curvature (R1) of -515.1 mm. The inner and outer radii are both 0, indicating a uniform curvature.
The lens is designed to work with a wavelength of 588 nm. It is important to note that the lens does not have any coating, which could affect its performance in certain applications. However, its uncoated nature also means that it can be easily integrated into systems without the need for additional coating processes.
The lens is currently in stock and more information about it can be found on the CVI Laser Optics website. The link to the product data sheet is provided for convenience.