The OPB-20S03-P is a 20 x 20 mm N-BK7 Square Optical Parallel Flat Window, with a thickness of 3 mm, sourced from OptoSigma. This window is a type of flat window, designed with a rectangular base shape and a thin lens shape.
The window is made from N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. This Schott glass type is widely used in various applications due to its low coefficient of thermal expansion and high Abbe number.
The window is designed to operate at a wavelength of 588 nm, making it suitable for applications that require high transmission at this wavelength.
Notably, this window is uncoated, meaning it does not have any anti-reflective or other coatings. This may be suitable for applications where such coatings are not required or desirable.
According to the vendor's website, this item is currently in stock, ensuring quick delivery for your optical project needs.