Question

The wavefront of the reference sphere

  • 10 September 2021
  • 5 replies
  • 52 views

How to obtain the wavefront of the reference sphere through ray tracing, and what operand or function is used?This question makes me very anxious, I would be very grateful if someone answers:cry:


5 replies

Userlevel 5
Badge +3

On axis, the reference sphere is just a perfect sphere with radius equal to the exit pupil position, which you can get via EXPP. The ‘Wavefront’ of the system, is the real wavefront at the EXPP with the reference sphere subtracted.

Off axis this definition is much the same but there is some complexity due to the tilt aberration. OpticStudio uses the tilt-removed reference sphere, which gives the physically meaningful wavefront that controls image quality. 

  • Mark

On axis, the reference sphere is just a perfect sphere with radius equal to the exit pupil position, which you can get via EXPP. The ‘Wavefront’ of the system, is the real wavefront at the EXPP with the reference sphere subtracted.

Off axis this definition is much the same but there is some complexity due to the tilt aberration. OpticStudio uses the tilt-removed reference sphere, which gives the physically meaningful wavefront that controls image quality. 

  • Mark

Hi Mark,

Thank you very much for your answers.
Then can I obtain the optical path data of the reference sphere on the exit pupil surface in any way, including on-axis and off-axis?


Sincerely 

Nancy 

Userlevel 4
Badge +1

Hi Nancy

I had created this file. I did it a while ago so if there are any discrepancies let me know. The calculation can be done in the merit function.

Sandrine

Hi Sandrine Auriol

Thanks for your reply! The File really work for me!I love you so much!

Sincerely 

Nancy 

Userlevel 4
Badge +1

:joy: Thank you!

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