This feature creates the rays for all traceable optical sources. After the rays are created, their starting points will be shown in the visualization window if it is turned on, but this command does not execute the raytrace. This feature can be very useful when an analysis plane is used on the source and it is not desired that the rays be traced through the system.
NOTE: If there are rays in the system prior to issuing this command, they are deleted before new rays are created.
This command can be accessed in the following ways: •Menu > Raytrace > Create All Source Rays •Ctrl + Shift + F8 •Toolbar button:
All analysis options can be exercised on any and all of the currently traceable sources prior to execution of the raytrace. Graphical displays of the intensity and irradiance properties of a source can be created by first attaching an Analysis Plane to the source of interest and then generating either a spot diagram or spread function.
When a source is created, the following information is printed to the output window: Ray Count - Number of rays created at the source. Specified Power - Value entered in the Power tab of the source definition. Arrayed Power - Total power for an arrayed source. This power is not necessarily a scaled version of the base source, since each arrayed source may have randomized characteristics. Power Units - Specified power units on the Power tab of the source definition. Realized Lumens - Reported only when the source units are Lumens and reflects the actual power of the source using the generated rays and calculated luminous efficacy. Name - Name of the source.
For sources whose power units are specified as Lumens, it is advisable to review the Realized Lumens output after creating the source for comparison against the specified power. The realized Lumens value is the actual calculated photometric power of the source using the rays generated during source creation and can be an indicator of the how accurately the source's spectrum is represented by the generated rays.
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