Rhomboid Prism

Definition and meaning of Rhomboid Prism in chemistry.

A rhomboid prism is a specialized optical component used to displace a light beam laterally without changing its direction of propagation or inverting the image.

In more detail

It is shaped geometrically like a parallelogram and relies on two internal reflections to shift the path of incident light. Because the entrance and exit faces are perfectly parallel to each other, the beam emerges strictly parallel to its original path but displaced by a specific distance determined by the prism's dimensions. This property is highly useful in the design of compact optical and analytical instruments where physical space is limited or precise beam steering is required. They are often coated to maximize internal reflection efficiency.