45-642 35 mm Dia. B270 Glass Protective Flat Window; t=2 mm Uncoated

The 45-642 is a 35 mm diameter uncoated B270 window, designed and manufactured by Edmund Optics. This protective flat window boasts a thickness of 2 mm, making it an ideal choice for various optical applications.

The window is crafted from B270 Schott glass, a high-quality borosilicate glass renowned for its excellent optical properties and durability. This material is particularly suitable for applications that require high transmission in the visible spectrum, as demonstrated by its specified wavelength of 587.6 nm.

The window features a flat base shape, ensuring a uniform and consistent optical path. Its geometry is defined by a 35 mm diameter, providing a substantial aperture for light transmission. The 2 mm thickness, or 't' as indicated in the catalog number, offers a balance between robustness and minimal optical distortion.

Notably, this window is uncoated, meaning it does not have any additional layers applied to its surface. This can be advantageous in certain applications where anti-reflection or other specialized coatings are not required. However, users should be aware that uncoated windows may exhibit higher reflectivity at interfaces, which could impact overall system performance.