Couder Screen 設計程式
http://web.telia.com/~u41105032/couder/zcalc.htm Mirror Diameter = 400 mm Mirror Radius = 200 mm
The center 0% of the mirror area is excluded
Zone Inner Outer Corrected Center
# Radius Radius Radius
----- --------- --------- ---------
1 0.0000 mm 70.7107 mm 43.3013 mm
2 70.7107 mm 100.0000 mm 85.9812 mm
3 100.0000 mm 122.4745 mm 111.5207 mm
4 122.4745 mm 141.4214 mm 132.1179 mm
5 141.4214 mm 158.1139 mm 149.8839 mm
6 158.1139 mm 173.2051 mm 165.7454 mm
7 173.2051 mm 187.0829 mm 180.2108 mm
8 187.0829 mm 200.0000 mm 193.5953 mm