Penta Prisms are a unique optical component designed to deviate a beam by 90º without inverting or reversing the image. This makes them an essential tool in various optical applications where maintaining the orientation of the image is crucial. The constant deviation property of penta prisms ensures that the 90º deviation angle is consistent for all rays passing through the effective aperture, regardless of their angle concerning the optical axis. This feature is particularly beneficial in scenarios where precise control over prism orientation is challenging.

Due to the specific geometry of penta prisms, the reflecting surfaces do not rely on total internal reflection. Instead, they require a coating, either metal or dielectric, to achieve the desired reflective properties. This necessity for coatings underscores the importance of precision in manufacturing and the expertise required to produce high-quality penta prisms. The coatings ensure that the prisms perform optimally under various conditions, enhancing their versatility and reliability in demanding optical systems.

At Rocky Mountain Instrument Co., we pride ourselves on our collaborative approach to working with clients. By engaging with customers early in the development process, we help transition prototype concepts into efficient, manufacturable solutions. Our commitment to solving even the most technically challenging requirements is reflected in the quality and performance of our optical components, including our expertly crafted penta prisms.