Hi Kathleen,





Your lens is splitting the light due to Fresnel reflections at glass-air boundaries. When you turn on splitting, it also turns on Polarization and OpticStudio splits rays. There are several ways to control this:





To see rays split in the layout, turn it on in the layout settings dialog:








To spit rays in analysis, turn on splitting in the ray trace control:








Sometimes you don't care about tracing rays below a certain intensity threshold. You can control that in the Non-sequential section of the System Explorer. Below I set it to not propagate ray child that has fallen below 7% of the initial parent intensity. This affects the analysis as well as the display:

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I have this problem all the time.  I used to do what David suggested but if you forget to change the minimum ray intensity back to something sensible you can waste a lot of time with incorrect analyses!  You can also set each unwanted reflection to the I.9999999 perfect coating.  But again you might want to analyse with a real coating.





You know, it would be nice to have a check box "Do Not Split Rays At This Face" to make this easier..


Better still, adding a "Do Not Draw Split Rays At This Face" check box would be good.   A bit like this.....

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