11-878 25 mm Dia. UVFS Round Protective Flat Window; t=5 mm Uncoated

The 11-878 is a 25 mm diameter flat window made from UVFS material with a thickness of 5 mm. This protective window is sourced from Edmund Optics and is currently in stock. The item's web link is valid, directing users to a detailed product page for further information.

As a window, this component is designed to protect optical surfaces from damage while allowing light to pass through. Its flat shape ensures a uniform thickness, minimizing optical distortion. The base shape of this window is circular, making it suitable for a wide range of applications where a circular aperture is required.

The material of this window is UVFS, which is a type of fused silica. Fused silica is known for its excellent optical properties, including a low coefficient of thermal expansion, high thermal shock resistance, and high transmittance across a wide spectrum. The UVFS designation indicates that this particular fused silica has been optimized for use in the ultraviolet region of the spectrum.

The window has a thickness of 5 mm, providing robust protection while maintaining a relatively low weight. The uncoated nature of the window means it does not have any anti-reflective or other coatings. This can be advantageous in certain applications where a bare optical surface is required.

The window is designed for use at a wavelength of 587.6 nm, which is in the yellow-green region of the visible spectrum. However, due to the high transmittance of fused silica, this window can be used across a much broader spectrum if needed.