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Paraxial XY surface

The paraxial XY surface is a "perfect cylindrical lens" specified by its focal powers in the x and y directions. Note that such a perfect lens can not exist except in ray optics, so wave quantities like OPD will not be correctly calculated if paraxial surface is present.

Parameters

powerX
Focal power in xz plane, in units of 1/millimeters.
powerY
Focal power in yz plane, in units of 1/millimeters.

See also