User Inputs
Use the User Inputs section to declare how much variation will be allowed from the nominal system performance. These inputs will be used to compare the performance of the lens file to the ZBD after conversion (and before passing the system on to OpticsBuilder). These inputs will also be used as reference in Creo as performance targets for the mechanical engineer.
File Loading: Select the settings for the non-sequential ray trace. This ray trace will be stored in the ZBD file and loaded into Creo. If the Read-only checkbox is selected the ZBD file cannot be edited using OpticsBuilder, however changes can be made using CAD tools. If the Convert STOP Surface to Hard Aperture checkbox is selected then the Stop surface, as chosen in the Lens Data Editor, will be converted to an Annulus object. For more information on the Analyse with checkboxes, see Scattering and Ray Splitting.
Allowable Deltas: Choose the number of analysis rays used during the preparation process. Select the amount of change that is allowed for the spot size in μm. Some typical causes of spot size change are listed in "Conversion errors". Select the amount of beam clipping that is acceptable. Beam clipping represents an acceptable amount of energy loss that may derive from adding mechanical packaging. Finally, select the amount of acceptable image contamination. This represents any undesired flux on the detector caused by stray light or ghost rays.
Component Support: Choose which CAD software the ZBD file will be loaded into.
Geometric MTF: Choose whether to include MTF data in the ZBD file output. Select the maximum frequency sampled. If converting from Sequential Mode you can also select the number of sampling points.
Critical Ray Trace: Choose the amount of allowable change in the location and angle of the critical rays. Position Tolerance represents the maximum allowed difference between a ray's landing position in the original file, and in the copied file. The position is given in lens units. The Angle Tolerance will represent the maximum allowed angle between the target ray's vector, and the actual ray's vector. This is given in degrees.
Prepare: This button will start the process for converting the file into a ZBD format.
Terminate: This button terminates the ZBD file preparation process.
Open Non-Sequential File: This button will appear when the conversion fails or is terminated. This will open the non-sequential version of the file for review.
More: In this section, the criterion for the conversion may be observed. Here, the field-by-field spot size may be graphically compared between the original file and the converted file. Additionally, and objects that were not able to be converted will be listed under "Object Diagnostic".
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