43-895 100 mm Dia. Borofloat33 Protective Flat Window; t=6.5 mm Uncoated

The 43-895 is a high-quality flat window offered by Edmund Optics, designed with a diameter of 100 mm and a thickness of 6.5 mm. This protective window is made of Borofloat33, a popular material in the optical industry due to its excellent transmittance and durability properties.

Borofloat33, also known as borosilicate glass, is a low-expansion glass with a very low coefficient of thermal expansion, making it highly resistant to thermal shock. This feature ensures the window's structural integrity even when subjected to rapid temperature changes. Moreover, Borofloat33 offers superior transmittance across a wide spectrum, including the visible light range, making it an ideal choice for various optical applications.

The 43-895 window is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. While coatings can be beneficial for specific applications, an uncoated window provides a cost-effective solution when such enhancements are not required. It also offers excellent environmental resistance, making it suitable for use in various conditions.

This window is classified as a flat window, which means it has a planar surface on both sides. Flat windows are commonly used in optical systems to protect the more sensitive optical elements from environmental contaminants, while minimally affecting the system's optical performance.