OPB-50C05-1-5 50 mm Dia. N-BK7 Round Optical Parallel Flat Window; t=5 mm Uncoated

The OPB-50C05-1-5 is a high-quality optical window from OptoSigma, designed for use in a wide range of applications. This window boasts a 50 mm diameter and a thickness of 5 mm, making it suitable for use in systems where a thin, yet robust optical element is required.

The window is made from N-BK7, a type of borosilicate glass that is renowned for its excellent optical properties. This material is known for its low coefficient of thermal expansion, making it resistant to thermal shock and suitable for use in environments with varying temperatures. The N-BK7 Schott material also offers high homogeneity and excellent transmission in the visible spectrum, making it an ideal choice for applications where clarity and transparency are paramount.

The window is uncoated, meaning it does not have any additional layers applied to its surface. This can be beneficial in certain applications where the natural properties of the glass are desired, or where the addition of a coating could potentially introduce unwanted distortions or reflections. However, it's important to note that uncoated windows may be more susceptible to environmental factors such as dust, dirt, and moisture, so they may require more frequent cleaning and maintenance.

The window is designed in a flat configuration, which helps to minimize distortions and ensures that light passing through the window does so without being refracted or altered. This makes it ideal for use in applications where a straight-line path of light is required, such as in beam delivery systems or in imaging applications.