ABSTRACT

Prisms and mirror systems are important parts in optical systems and have been studied by many authors, e.g., by Hopkins (1962, 1965). The presence of a prism in an optical system has many effects that must be taken into account when designing such a system. Among these effects we can mention the following:

1. A change in the direction of propagation of the light. 2. A transformation on the image orientation. 3. An image displacement along the optical axis. 4. The limited sizes of their faces may act as stops, limiting the lateral

extension of the light beam. 5. Some aberration contributions are added, mainly spherical and

axial chromatic aberrations, even with flat faces.