This is a flat window type optical element, specifically a circular window, sourced from Alkor Technologies. The window is made of Calcium Fluoride (CaF2) with a Mal-1963 material ID. The window has a diameter of 13 mm and a thickness of 2 mm, making it a thin lens.
The window is designed to operate at a wavelength of 633 nm. It does not have any coating applied to it, as indicated by the empty coating parameter in the item data. The window's geometry and material make it suitable for a variety of optical applications.
For more information about this product, you can refer to the vendor's website through the provided weblink. The weblink status indicates that the product is in stock, ensuring quick delivery upon order.