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Figure 4
Surfaces of the three vertical focusing mirrors. (a) Tangential elliptical cylinder. (b) Toroid and sagittal collimating diaboloid. Both of these figures are drawn to the same scale. Note that, at this scale, the toroid and diaboloid surface appear nearly identical. (c) To illustrate the contrast between the diaboloid and the toroid, the difference between the two surfaces is plotted and the z scale is stretched for emphasis. The maximum difference between the two surfaces is 0.252 mm. |

journal menu![[Figure 4]](mo5314fig4.jpg)
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