Figure 4
(a) Montel mirror schematic, illustrating the parameters that define the focusing and collimation performance. Only a single axis is shown for clarity; in reality a Montel mirror consists of two identical mirrors in an L-shape configuration to cover vertical and horizontal directions. (b, c) Realistic ray-tracing simulations of the Montel mirror element illustrate the impact of slope error (as root-mean-squared variance) on the collimation and focusing performance. |