Image Rotation
Robert H. Ginsberg · Applied Optics · 1994
A simple equation is presented that describes the rotationof an image by a mirror or prism, and that can be used tocalculate the amount of image rotation in a complex opticalsystem. The equation also provides an intuitive understandingof heretofore mystical(1) optical devices such as derotationprisms (for example, the dove prism).