OPB-20C05-P 20 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated

The OPB-20C05-P is a 20 mm diameter N-BK7 round optical parallel flat window with a thickness of 5 mm, sourced from OptoSigma. This uncoated window is designed for use in optical systems where parallel light transmission is required.

The window is made from N-BK7, a popular optical glass known for its excellent optical properties, including a high Abbe number and low dispersion. This makes it an ideal choice for applications that require high precision and accuracy, such as laser systems, beam delivery systems, and imaging systems.

The window's thin lens shape ensures minimal distortion of the transmitted light, while its flat surface ensures parallel light transmission. The 5 mm thickness provides sufficient structural integrity for most applications, while minimizing the impact on the light path.

The window is uncoated, meaning it does not have any anti-reflective or other coatings. This can be beneficial in applications where coatings may interfere with the light transmission, or where simplicity and cost-effectiveness are priorities. However, it should be noted that uncoated windows can result in some reflection at the air-glass interface, which may need to be considered in the system design.

The window is currently in stock and available for purchase from the OptoSigma website. With its high-quality materials, precise design, and versatile applications, the OPB-20C05-P is a reliable choice for a wide range of optical systems.