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          "projected_pupil_fraction": 0.0
        },
        {
          "projected_corners_mm": [
            [
              -0.06527512373169575,
              34.491362090241815
            ],
            [
              0.474425389353635,
              39.397382108842976
            ],
            [
              -8.174367644476604,
              38.67891895979602
            ],
            [
              -8.714068157561934,
              33.77289894119486
            ]
          ],
          "overlap_area_mm2": 0.0,
          "quadrature_error_mm2": 0.0,
          "projected_pupil_fraction": 0.0
        }
      ]
    }
  ],
  "limitations": "Flat vertex disks and active detector rectangle only; no substrates, mounts, detector housing, window, baffle or package-wall intersections. Finite field/pupil sampling is not continuous clearance proof. Shadow projection is an independent conservative geometric screen, not a full-path ordering calculation. Physical-plane metrics do not revise historical acceptance. No tolerances, diffraction or hardware validation. No prescription is promoted."
}