This is a 14APX-1-170-1 25.4 mm Dia. N-BK7 Standard Plano-Convex Axicon, a specialized optical element designed and manufactured by Standa. The item, which is uncoated, is characterized by its circular base shape and axicon prism type.
The axicon has a diameter of 25.4 mm and a thickness of 8 mm at the edge. The apex angle of this axicon is 2.9670597283903604 degrees, which is a standard value for this type of optical component. The convexity of the axicon is on the side facing away from the optical axis, which is typical for this kind of element.
The material used for this axicon is N-BK7, a type of borosilicate glass manufactured by Schott. This material is known for its excellent optical properties, making it a popular choice for a wide range of optical applications. The axicon is designed to work with a wavelength of 633 nm.
The axicon is available from Standa and is currently in stock. More information about this item, including pricing and availability, can be found on Standa's website at http://www.standaphotonics.com/lenses/plano-convex-axicons.php.