OPB-20C02-4-5 20 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=2 mm Uncoated

The OPB-20C02-4-5 is a 20 mm diameter N-BK7 round optical parallel flat window with a thickness of 2 mm, uncoated. This product is sourced from OptoSigma, a renowned vendor in the optical industry.

This optical 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 thin, making it ideal for applications where minimal optical path length distortion is required.

The material of this window is N-BK7, a type of borosilicate glass that is known for its excellent optical properties, including a high refractive index and low dispersion. This makes it suitable for a wide range of applications, particularly where high-quality imaging is required.

The window is designed to operate at a wavelength of 588 nm, which is in the yellow-orange part of the visible light spectrum. This makes it suitable for use in systems that operate in this wavelength range, such as certain types of lasers or optical imaging systems.

The window is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. This can be beneficial in certain applications where the natural properties of the glass are desired, or where cost is a concern. However, it may not be suitable for applications where specific optical properties, such as high reflectivity or low absorption, are required.