The 38-928 is a 50.8 mm diameter Window from Edmund Optics, specifically designed for use with 266nm wavelengths. This Window falls under the category of Flat Window and features a Circular base shape. The geometry of this Window includes a diameter of 50.8 mm and a thickness of 9.53 mm.
The Material ID for this Window is UVFS MAL-1965. The coating on both the front and back of this Window is EDMLAS V-COAT 266, providing optimal performance for 266nm wavelengths. This Window is designed in the shape of a Thin Lens.
According to the vendor's website, this item is currently in stock. For more detailed information, you can refer to the following weblink: https://www.edmundoptics.com/p/508mm-dia-266nm-10-fused-silica-window/39541/