36-993 25 mm Dia. N-BK7 Precision Protective Flat Window; t=3 mm Uncoated

The 36-993 is a 25 mm diameter, 3 mm thick uncoated Flat Window made from N-BK7 Schott glass. This window, sourced from Edmund Optics, is a precision optical component designed to protect other optical elements from environmental hazards while minimally affecting the light path.

The window's base shape is circular, a common design for components intended to be used in a wide range of applications. The N-BK7 Schott glass, a borosilicate crown glass, is known for its excellent optical properties, including low dispersion and high homogeneity, making it a popular choice for various optical applications.

The window has a thickness of 3 mm, providing robust protection without introducing significant optical distortion. The uncoated surface allows for versatility in application, as users can apply their own coatings to suit their specific needs.

The 36-993 window is designed to work at a wavelength of 587.6 nm, although it can be used effectively across a broader spectrum due to the properties of N-BK7 Schott glass. The window's geometry is that of a thin lens, further enhancing its functionality and applicability.