
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.