Abstract
The demand for optics with non-rotationally symmetric (NRS) surfaces has been growing in recent years. This paper examines some of the latest developments in single point diamond turning (SPDT) technology that permit these surfaces to be manufactured in a cost effective way. With some of these techniques it is possible to achieve surfaces with better than 3 nm Ra surface finish and 200 nm form error. Characteristics of each of the five basic system elements are considered: Command Generator, Compensation Filters, Power Electronics/Actuator, Mechanics and Position Sensors.
