OPB-25C03-P 25 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=3 mm Uncoated

The OPB-25C03-P is a 25 mm diameter N-BK7 round optical parallel flat window with a thickness of 3 mm, sourced from OptoSigma. This uncoated window is designed for use in optical systems where a flat, transparent surface is required.

The window is made from N-BK7, a popular borosilicate glass known for its excellent optical properties. It has a refractive index of 1.5168 at 588 nm, making it suitable for a wide range of optical applications. The window's geometry is circular, with a diameter of 25 mm and a thickness of 3 mm, providing a robust and stable platform for optical components.

The window is classified as a flat window, which means it has parallel surfaces. This is crucial in optical systems where maintaining a consistent optical path length is essential. The window's thin lens shape further enhances its utility in such systems.

The window is uncoated, meaning it does not have any anti-reflective or other coatings. This can be advantageous in certain applications where coatings may interfere with the desired optical properties. However, it's important to note that uncoated windows can reflect up to 4% of incident light, which may need to be considered in system design.

The window's vendor, OptoSigma, is a reputable supplier of optical components, ensuring quality and reliability. The item's web link indicates that it is currently in stock, making it readily available for immediate use.