Geometric structure of a rhomboid prism
Side faces: two parallelogram-shaped inclined surfaces (typically with a 45° tilt angle or custom angles).
End faces: two rectangular entrance/exit surfaces (perpendicular to the optical axis).
Symmetry: no rotational symmetry, but it exhibits mirror symmetry.

Optical properties of a rhomboid prism
Beam displacement: the output beam is parallel to the input but laterally shifted, with displacement determined by the prism height and refractive index.
No image rotation: preserves the original image orientation (unlike penta or dove prisms, which rotate the image).
Reflection mechanism: typically employs two total internal reflections, creating a "Z"-shaped optical path.