OPB-40C02-1-5 40 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=2 mm Uncoated

The OPB-40C02-1-5 is a 40 mm diameter N-BK7 round optical parallel flat window with a thickness of 2 mm, uncoated. This product is sourced from OptoSigma, a reputable vendor in the optical industry.

This optical component is classified as a window, specifically a flat window, due to its simple geometry and function. The window's primary role is to protect the optical system from environmental contaminants while minimally affecting the light path.

The window is made from N-BK7, a popular glass type in the optical industry due to its excellent optical properties. This type of glass, also known as BK7, is a borosilicate crown glass with a low refractive index and low dispersion, making it an ideal choice for various optical applications.

The window has a base shape of a circle, which is the most common shape for optical components due to its isotropic properties. The circular shape ensures that the optical properties are uniform in all directions, making it suitable for a wide range of applications.

The window's geometry includes a diameter of 40 mm and a thickness of 2 mm. The diameter is the overall size of the window, while the thickness is the distance between the two parallel faces. The thickness is uniform across the window, ensuring a consistent optical path.

This window is uncoated, meaning it does not have any anti-reflective or other coatings. While coatings can enhance the optical performance of a window, an uncoated window can be sufficient for many applications, especially those where cost or simplicity is a significant factor.

The window is designed to operate at a wavelength of 588 nm. This wavelength falls within the visible light spectrum, indicating that this window is suitable for use in visible light applications.