Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.

I would like to get an explanation on how to understand such a lens spot diagram: Spot diagram in Zemax

Thanks

share|improve this question
add comment

1 Answer

The size of the spot is the size an image of a point source will be on you detector.

In other words, the spot diagram gives indication of the image of a point object. In the absence of aberrations, a point object will converge to a perfect image point.

share|improve this answer
    
Thanks. Meaning that for the same object point, I have a different size of spot for each pixel of my sensor? Here IMA: 0.000MM refers to the center of the sensor? And IMA: 5.500MM refers to a point located at 5.5000MM of the center? –  Raphael Jan 11 '12 at 12:21
    
Not exactly a point, by 5.5mm must be the size of a point source you would be able to see ont he screen going by the above definition :) @Raphael –  Jack Jan 11 '12 at 12:23
    
Sorry but I don't understand what means IMA: 5.5MM/0.0MM/3.0MM.. –  Raphael Jan 11 '12 at 12:27
    
IMA describes the location of the centroid on the imaging surface –  Jack Jan 11 '12 at 12:33
    
This Biphotonics article should help you . Dont wrorry by the bophotonics name, go to fig 6 and related discussion, you will be at bay :) @Raphael –  Jack Jan 11 '12 at 12:34
show 6 more comments

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.