66-202 40 mm Dia. Zinc Sulfide Protective Flat Window; t=4 mm Uncoated

The 66-202 is a 40 mm diameter Zinc Sulfide (ZnS) protective flat window, with a thickness of 4 mm and no coating. This window, sourced from Edmund Optics, is a type of flat window, designed with a circular base shape, and classified under the thin lens category.

The window is made of Zinc Sulfide, a material with the Mal-1965 Material ID, which is often used in optical applications due to its excellent transmission properties in the ultraviolet, visible, and near-infrared regions of the spectrum. The specific wavelength for this item is 587.6 nm.

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 the natural properties of the material are desired, or where additional coatings may interfere with the system's performance.

The window's geometry, with a diameter of 40 mm and a thickness of 4 mm, makes it suitable for a wide range of applications. The window's thin lens shape further enhances its versatility, making it a reliable and efficient component in various optical systems.

According to the vendor's website, the window is currently in stock, ensuring quick delivery and availability for immediate use in your optical projects.