WHS4000 40 mm Dia. Sapphire Random Cut Round Window; t=2mm Uncoated

The WHS4000 is a 40 mm diameter sapphire random cut round window with a thickness of 2mm, uncoated and sourced from Knight Optical. This window is a flat, circular optical component designed for use in various applications where high-quality optical transmission is required.

The window is made of aluminum oxide (Al2O3), a material with a wide transmission range, making it suitable for use across a broad spectrum of wavelengths. The specific wavelength mentioned in the item data is 633 nanometers, which is within the visible light spectrum.

The window's geometry is defined by its diameter and thickness. With a diameter of 40 mm, it provides a substantial aperture for light transmission. The 2mm thickness offers a good balance between mechanical strength and optical performance.

The window's shape is described as a thin lens, indicating that it has been precisely manufactured to maintain optical quality. However, it is important to note that the term "thin lens" here refers to the shape and not to any lens properties such as focal length or refractive power.

The window is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. This can be advantageous in certain applications where a bare substrate is preferred.

The window is in stock and available for immediate purchase from Knight Optical, as indicated by the "weblink status" in the item data.