The 68-813 is a circular flat window, 13 mm in diameter and 2 mm thick, manufactured by Edmund Optics. This window is made of Sodium Chloride, also known as common salt, and is uncoated. The uncoated feature implies that the window does not have any additional layers of material applied to its surface, which can affect its optical properties.
As a flat window, the 68-813 is designed to protect optical surfaces from damage while minimally affecting the light path. It is often used in applications where a clear view of the optical path is required, such as in beam delivery systems or as a protective cover for sensitive optical components.
The Sodium Chloride material of this window is a common choice for applications in harsh environments, as it has a high melting point and is resistant to many chemicals. However, it is important to note that Sodium Chloride can absorb moisture from the environment, which may affect its optical properties over time. Therefore, it is recommended to store this window in a dry environment to ensure its longevity.
This window is available for purchase directly from Edmund Optics, and the provided weblink indicates that it is currently in stock. For more information about this product, including its catalog number, vendor, and detailed specifications, please refer to the item data provided.