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When tolerancing an optical system, i´ve set the criterion to be the RMS spot radius.

It is not clear however if this refers to the RMS spot radius for a field point along the optical axis, on the edge of the field of view or a weighted sum of the different field points. Can someone elucidate me?

Kind regards, 

@Jonasz :

There are three options for how fields are handled for tolerancing purposes:

 

Note that for user-defined fields, you can apply relative weighting factors:

Regards,

Jeff


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