Odd Asphere

The odd asphere model deviation is similar to the even asphere, except both even and odd powers of r are used.  The sag is given by

z = c r 2 1 + 1 - 1 + k c 2 r 2 + β 1 r 1 + β 2 r 2 + β 3 r 3 + β 4 r 4 + β 5 r 5 + β 6 r 6 + β 7 r 7 + β 8 r 8

Note that the coefficients have units. The coefficients are entered in the corresponding parameter columns, as shown in the following table.

Parameter # Definition
1 - 8 β1 - β8

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