The CaF2-W-25.4x5 is a flat window type optical element, sourced from Alkor Technologies, with a circular base shape and a diameter of 25.4 mm. This window has a thickness of 5 mm and is made of Calcium Fluoride (CaF2) with the material ID "caf2 mal-1963".
The window is designed to operate at a wavelength of 633 nm and has a shape that can be likened to a thin lens. It is uncoated, which means it does not have any additional layers to enhance or alter its optical properties.
This window is available for purchase directly from Alkor Technologies, as indicated by the "weblink status" field in the item data. For more detailed information, users are encouraged to visit the vendor's website via the provided weblink.