PS811 1 in Dia. 4deg Beam Deviation; Round Wedge Prism Uncoated

The PS811 is a round wedge prism from Thorlabs, designed with a 1-inch diameter and a 4-degree beam deviation. This uncoated prism is made of n-BK7 Schott glass, a popular material in optical systems due to its excellent optical properties and high Abbe number.

The prism's geometry is meticulously crafted, with a thickness of 6.43 mm and a wedge angle of approximately 0.134 degrees. The thickness at the edge is 3 mm, providing a robust structure while maintaining a manageable weight. The deviation angle is 0.0698 degrees, which is crucial for controlling the path of light in various optical setups.

The prism's shape is another notable feature. As a wedge prism, it is designed to deviate or refract light by a certain angle, making it ideal for applications such as beam steering, beam expansion, and angular image compensation. The round base shape adds to its versatility, allowing it to be used in a wide range of optical systems.

Notably, the prism is uncoated, meaning it does not have any additional layers to enhance its optical properties. This can be advantageous in certain applications where the natural properties of the glass are desired, or where additional coatings might introduce unwanted reflections or other optical effects.