39-291 75 mm Dia. UVFS Round Protective Flat Window; t=5 mm Uncoated

The 39-291 is a 75 mm diameter Uncoated UVFS Round Protective Flat Window, sourced from the renowned optical components vendor, Edmund Optics. This window is designed to provide robust protection for optical systems while minimally affecting the path of light.

The window is fabricated from UVFS (UV Fused Silica), a material with a Material ID of 1965, which is well-suited for applications involving ultraviolet light due to its low absorption and high transmittance in this region of the spectrum. The window has a thickness of 5 mm, strike a balance between durability and light transmission.

The window's geometry is circular, with a diameter of 75 mm, making it suitable for a wide range of optical systems. The shape of the window is thin lens, which means it has minimal optical power and is primarily used for protective or spatial filtering purposes.

The window is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces. This can be advantageous in certain applications where coatings may introduce unwanted reflections or other optical effects. However, it's important to note that uncoated windows can have higher reflectivity, especially at larger angles of incidence.

According to the vendor's website, the window is currently in stock, making it readily available for immediate use in your optical systems. For more detailed information, including specifications and performance data, you can refer to the vendor's website using the provided weblink.