This OptoSigma optical flat window, identified as S-OPB-40C04-10-5, is a circular window with a 40 mm diameter and a thickness of 4 mm. It is made of N-BK7, a popular glass type from Schott, known for its excellent optical properties and versatility.
The window is uncoated, meaning it does not have any additional layers to enhance or alter its optical properties. This can be beneficial in applications where the natural properties of the glass are desired, or where cost or simplicity are considerations.
The window is designed in the shape of a thin lens, which is a lens with a thickness significantly less than its diameter. This design can be advantageous in applications where minimizing weight or thickness is important.
The window is suitable for use 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 a wide range of applications, including but not limited to, imaging, spectroscopy, and beam manipulation systems.
According to the vendor's website, this item is currently in stock, making it readily available for immediate use or integration into optical systems.