Description

This command sets the stop surface semi-aperture to meet the object space numerical aperture entered into the Object Space Numerical Aperture dialog box.  This command does not affect on the FRED model.  It only affects the paraxial raytrace calculations.

Navigation

The Object Numerical Aperture command is accessed by right mouse clicking in the Paraxial Analysis dialog box.

Related Topics

Auto Select Aperture Stop

Construction

Image Numerical Aperture

Image Semi-field Angle

Image Working F/#

Make Aperture Stop

Object Semi-field Angle

Object Working F/#

Paraxial Trace

System Info

Third Order Analysis