OPB-20C01-P 20 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=1 mm Uncoated

The OPB-20C01-P is a 20 mm diameter N-BK7 round optical parallel flat window with a thickness of 1 mm, uncoated and sourced from OptoSigma. This window is designed for use in optical systems where a flat, transparent surface is required to maintain the optical path.

The window is made from N-BK7, a popular glass type in the optical industry due to its excellent optical properties. It has a refractive index of 1.5168 at 588 nm, making it suitable for a wide range of applications. The window's geometry is circular, with a diameter of 20 mm and a thickness of 1 mm, providing a robust and compact design.

The window is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces. This can be advantageous in certain applications where the natural properties of the glass are desired, or where cost is a consideration. However, it should be noted that uncoated windows can cause unwanted reflections, which may need to be considered in the overall system design.

The window is classified as a flat window, indicating that its surfaces are parallel to each other. This is crucial in optical systems where maintaining a straight optical path is essential. The window's thin lens shape further enhances its ability to minimize optical distortions.

According to the vendor's website, this item is currently in stock, ensuring quick delivery for those who need it. The window's specifications make it a versatile component for various optical applications.