OPB-20C03-4-5 20 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated

The OPB-20C03-4-5 is a 20 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 with a base shape of a circle, which is a common geometry in optical systems due to its symmetry and ease of alignment.

The window is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and high Abbe number. This specific type of glass, n-bk7 schott, is often used in high-precision applications due to its low dispersion and high homogeneity.

The window is designed for use at a wavelength of 588 nm, making it suitable for a wide range of applications that operate within this wavelength range. Its shape is that of a thin lens, which is beneficial in applications where minimal optical path deviation is required.

Notably, this window is uncoated. While coatings can enhance the performance of optical elements by reducing reflection, increasing transmission, or adding other desirable properties, an uncoated window can be advantageous in certain applications where specific coatings are not required or desired.

According to the vendor's website, this item is currently in stock, making it readily available for immediate use in your optical system.