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Paraxial data

The following values are defined in the dictionary returned by the paraxialData key of class Lens:

entrancePupilDiameter
Entrance pupil diameter in mm
entrancePupilLocation
Entrance pupil location in mm from the system surface. Positive means after.
entrancePupilMagnification
Ratio of pupil size to stop size.
exitPupilDiameter
Exit pupil diameter in mm
exitPupilLocation
Exit pupil location in mm from last surface. Positive means after last surface.
exitPupilCenter
Coordinates of exit pupil center in global coordinate system.
focalLength
Paraxial focal length in mm
imageSpaceFocalRatio
Image space f-number at working conjugate
imageSpaceNumericalAperture
Image space numerical aperture at working conjugate
infiniteConjugateImageSpaceFocalRatio
Infinite conjugate (object at infinity) image space f-number
infiniteConjugateImageSpaceNumericalAperture
Infinite conjugate (object at infinity) image space numerical aperture
magnification
Paraxial magnification (units depends on type of system)
minification
Reciprocal of paraxial magnification (units depends on type of system)
objectConeAngleInDegrees
Object cone angle in degrees
objectSpaceFocalRatio
Object space f-number
objectSpaceNumericalAperture
Object space numerical aperture

See also