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3D Design

3D Design

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  3. Conflict between marginal ray and first-order gives the wrong focal length

Conflict between marginal ray and first-order gives the wrong focal length

    • July 25, 2026 at 3:53 am
      yenmst99
      Subscriber

      Hi everyone!
      I'm a beginner at Zemax. I'm simulating the eye, using Marginal ray height to solve the thickness of surface 4. However, whenever I click on FIRST order in the Macro list to find the focal length, the value at the LDE turns out to be 0.

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