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Spherical concave mirror with rectangular aperture


Nicola Nicassio

Hi, I have a simple question for you. I would like to implement a concave mirror (or lens) with rectangular aperture in NSC mode (like the one I attached in this post). The rectangle must have a shape 25 cm x 25 cm, while the spherical part must have a radius of 40 cm.

Which object type should I use? (I already tried Standard Surface, but I cannot get the rectangular shape).

Thank you in advance.

Best answer by Flurin Herren

Hi Nicola,

Thanks for posting here in the forum!

In order to model a rectangular mirror in non-sequential, I would use the Off-Axis Mirror Object. With the Shape Parameter you can set it to rectangular (Shape 2) and with the X and Y Half Width you can set the dimensions.

If I take your sequential system on the image as a blue print, the non-sequential equivalent looks a bit like that:

 

Let me know if you have any other questions

Have a good day!

 

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Flurin Herren
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  • August 30, 2022

Hi Nicola,

Thanks for posting here in the forum!

In order to model a rectangular mirror in non-sequential, I would use the Off-Axis Mirror Object. With the Shape Parameter you can set it to rectangular (Shape 2) and with the X and Y Half Width you can set the dimensions.

If I take your sequential system on the image as a blue print, the non-sequential equivalent looks a bit like that:

 

Let me know if you have any other questions

Have a good day!

 


Nicola Nicassio

Thanks, it worked !!


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