AX251-UV 25.4 mm Dia. UVFS Plano-Convex Axicon Prism; 5 mm AR 245-400nm

The AX251-UV is a specialized optical component, a Plano-Convex Axicon Prism, sourced from Thorlabs. This axicon prism, with a catalog number AX251-UV, is designed for use in ultraviolet (UV) light applications, specifically between 245nm and 400nm. The prism is made from UVFS material, identified as MAL-1965, ensuring durability and performance in its intended UV range.

The AX251-UV has a diameter of 25.4mm, making it suitable for a wide range of applications. The prism's edge thickness is 5mm, while the center thickness is slightly more at 5.2mm. This slight increase in thickness towards the center is a characteristic of Plano-Convex lenses, which are designed to focus or collimate light.

The axicon prism has an angle of inclination (alpha) of 0.017453292519943295 radians, or approximately 1 degree. This angle, combined with the prism's convex shape, is designed to produce a narrow, intense beam of light when illuminated.

The AX251-UV comes with an anti-reflective (AR) coating on the front surface, specifically designed for the UV range (245-400nm). This coating, identified as THo UV UV ARC 245-400, reduces light loss due to reflection, improving the prism's efficiency in UV applications.