Optical Coating Techniques For Wolter-Type Substrates

Analysis of the Wolter type substrates in terms of optical coating parameters is discussed. This analysis shows that, in general, the variations in coating thickness can be reduced to negligible proportions by properly using aperture masks and by rotating and translating Wolter type substrates. Results achieved in coating the optical elements of the HEAO-2 X-ray telescope are discussed in view of the analysis.