BICC-50.8-154.9-UV 50.8 mm Dia. UVFS Laser Grade Concave-Concave Lens; EFL=-150mm Uncoated

This is the BICC-50.8-154.9-UV, a laser-grade concave-concave spherical lens, sourced from CVI Laser Optics. The lens boasts a diameter of 50.8 mm and a center thickness of 2 mm, making it suitable for a wide range of optical applications.

The lens has a negative focal length (EFL) of -150 mm, indicating its concave nature. This feature allows it to focus light to a point, making it ideal for use in collimating or focusing light beams. The lens's concave-concave design, characterized by radii of curvature of -154.9 mm and 154.9 mm, further enhances its light-focusing capabilities.

The lens is made from UVFS, a material with a refractive index suitable for use in the ultraviolet spectrum, specifically at a wavelength of 587.6 nm. This makes it an excellent choice for applications that require the manipulation of UV light.

Notably, the lens is uncoated, meaning it does not have any additional layers to alter its optical properties. This can be advantageous in certain applications where the natural properties of the material are desired, or where cost considerations are a factor. However, it's important to note that uncoated lenses can be more susceptible to environmental factors such as dust and moisture, and may not perform as well in high-intensity light applications.

The lens is currently in stock and more information about it can be found in the provided weblink.