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How to add a hole to mirror


Jmilberger

I have an on axis parabolic mirror that I would like to model a hole into for non-sequential mode so the rays can pass through to the rest of the system.  What is the best way to achieve this? 

Best answer by David

Use the overlapping object rule:

"When two or more objects occupy the same region of space, a simple rule applies. The properties of the common region are defined by whichever object is listed last in the Non-Sequential Component Editor."

If you define an overlapping cylinder of air after the mirror in the Non-Sequential Component Editor it will act like a hole in the mirror.

 

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3 replies

David
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  • October 31, 2023

Use the overlapping object rule:

"When two or more objects occupy the same region of space, a simple rule applies. The properties of the common region are defined by whichever object is listed last in the Non-Sequential Component Editor."

If you define an overlapping cylinder of air after the mirror in the Non-Sequential Component Editor it will act like a hole in the mirror.

 


Jmilberger
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  • 3 replies
  • October 31, 2023

Thanks David! 

Is there a way to do the same thing in sequential mode for visualization purposes?  


David
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  • October 31, 2023

In sequential mode, rays encounter objects in the order given in the sequential data editor. For example, if this is a telescope, once rays reflect from the secondary toward the primary, it is as though the primary is no longer there. They will go right through the same space without encountering anything. This is unlike non-sequential. You could place an object there, even a second instance of the primary, just to see the relationships.


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