Hi, i have non-sequential model of a LED source. I want to design collimating lenses for it and one of the lenses will be aspheric. Provided that designing of lenses is usually done in Sequential mode of OpticStudio, how do i design my system?

Hi, i have non-sequential model of a LED source. I want to design collimating lenses for it and one of the lenses will be aspheric. Provided that designing of lenses is usually done in Sequential mode of OpticStudio, how do i design my system?
Best answer by Benjamin.N
You can start by approximating the ray distribution of the source file with a simple model in sequential mode. The spatial ray distribution can be modeled by a set of object height fields that are distributed according to the shape of the source, e.g. rectangular for an LED. The angular ray distribution can be modelled by setting the aperture type to “Object Cone Angle” and choosing an appropriate aperture value.
Of course the actual ray distribution from the source file is probably much more complex than that. You could at first find a lens system in sequential mode that fulfills your needs within the range of the simplified model. Next, this lens system could be fine-tuned with the actual ray distribution in the non-sequential mode.
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