This is a flat window made of Calcium Fluoride (CaF2) with a diameter of 25.4 mm and a thickness of 0.5 mm. The item is sourced from Alkor Technologies and is currently in stock. The CaF2 material is identified as "caf2 mal-1963" in the vendor's database.
The window is of the flat variety, designed for use in optical systems where a clear, undistorted view is required. The base shape of the window is circular, making it suitable for a wide range of applications.
The window is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. This can be beneficial in certain applications where a specific coating is not required or desired.
The window is designed to operate at a wavelength of 633 nm, making it suitable for use in a variety of optical systems that operate in this wavelength range.
The window is shaped like a thin lens, which can provide some focusing capabilities, depending on the specific application. This can be beneficial in systems where a lens is required but space is limited.
For more information about this item, please refer to the vendor's website at http://www.alkor.net/CaF2_windows.html.