Hi,
In my scanning laser setup, I use a paraxial lens as an objective f=10 mm, 20x. The entrance pupil (EP) of objective is 10 mm. How to add front and back f of the objective together with objective back focal plane ( which is the entrance pupil). Also, in “the goal” simulation ( at the bottom) scanning rays are restricted by the objective BFP, and it does not work in my simulation.
![](https://uploads-us-west-2.insided.com/zemax-en/attachment/fa04e7a1-d364-4d22-b97e-be4621a2cd1c.png)
Regards,
Marzanna