OPB-12.7C03-10-5 12.7 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated

The OPB-12.7C03-10-5 is a 12.7 mm diameter N-BK7 round optical parallel flat window with a thickness of 3 mm, sourced from OptoSigma. This window is a type of flat window, designed for use in optical systems where a clear aperture is required. The window is made from N-BK7, a popular optical glass known for its excellent optical properties, including a high Abbe number and low dispersion.

The window has a base shape of a circle, which is the most common shape for optical elements due to its symmetry and ease of manufacturing. The geometry of the window includes a diameter of 12.7 mm and a thickness of 3 mm, making it a thin lens. The thickness of the window is uniform across the diameter, ensuring that it does not introduce any unwanted distortions or aberrations into the optical system.

The window is designed to operate at a wavelength of 588 nm, which is in the yellow-green region of the visible spectrum. This makes it suitable for use in a wide range of optical systems, including lasers, beam expanders, and optical imaging systems.

The window is uncoated, meaning that it does not have any anti-reflective or other coatings applied to its surfaces. This can be advantageous in some applications where the introduction of a coating could introduce unwanted reflections or other optical effects. However, it should be noted that uncoated windows can have higher reflectivity than coated windows, which could impact the performance of some optical systems.

The window is available from OptoSigma, a leading vendor of optical components. According to the vendor's website, the window is currently in stock, indicating that it is readily available for purchase and delivery.