The penta prism reflects light rays through a 90 angle by two reflections and does not invert or revert the image. Slight movement of the prism does not affect the true right angle at which light rays are reflected. It also shortens the optical path length of an instrument.
Projection Optical Systems Imaging Optical Systems Optical Measurement Systems Optical Display Systems
Specification:
* Other sizes and coatings are available upon requirements.
Infrared Optics
angle by two reflections and does not invert or revert the image.