{
  "model": "plano-convex oil surrogate, radius 40 mm, centre thickness 8 mm, air on both sides; optically negligible shell",
  "timestamp": "2026-10-21T00:42:17.274Z",
  "geometry": {
    "radius": 40,
    "thickness": 8,
    "aperture": 20,
    "temperature": 20,
    "dispersion": 1,
    "focusOffset": 0,
    "amber": 1,
    "exposure": 1,
    "sensorWidth": 36,
    "asymmetry": 0
  },
  "bestGreenFocus_mm": 78.36847166551725,
  "referenceData": "NIST SRM 1922; not the motor oil from the screenshot",
  "absorption": "uncalibrated artistic material assumption; NOT from NIST",
  "experiments": {
    "chromaticFocus": [
      {
        "wavelength_nm": 643.8,
        "index": 1.46744,
        "paraxialBackFocus_mm": 80.12080895332497,
        "bestMonochromaticFocus_mm": 79.07937936614185
      },
      {
        "wavelength_nm": 546.1,
        "index": 1.47149,
        "paraxialBackFocus_mm": 79.40076403797308,
        "bestMonochromaticFocus_mm": 78.36847166551725
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      {
        "wavelength_nm": 467.8,
        "index": 1.47685,
        "paraxialBackFocus_mm": 78.46688621596125,
        "bestMonochromaticFocus_mm": 77.44630977612002
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    ],
    "aperture": [
      {
        "aperture_mm": 6,
        "bestFocus_mm": 79.30934703016575,
        "geometricRmsRadius_mm": 0.0008094699705505898,
        "idealAiryFirstZeroEstimate_mm": 0.0094203765367947,
        "relativeArea": 0.09
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        "aperture_mm": 10,
        "bestFocus_mm": 79.14611986687692,
        "geometricRmsRadius_mm": 0.003768847690640912,
        "idealAiryFirstZeroEstimate_mm": 0.00565222592207682,
        "relativeArea": 0.25
      },
      {
        "aperture_mm": 20,
        "bestFocus_mm": 78.36847166551725,
        "geometricRmsRadius_mm": 0.030982911110838795,
        "idealAiryFirstZeroEstimate_mm": 0.00282611296103841,
        "relativeArea": 1
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      {
        "aperture_mm": 30,
        "bestFocus_mm": 77.02266839231629,
        "geometricRmsRadius_mm": 0.10970889679373154,
        "idealAiryFirstZeroEstimate_mm": 0.00188407530735894,
        "relativeArea": 2.25
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    ],
    "field": [
      {
        "angle_deg": 0,
        "rmsRadius_mm": 0.030982911110838795,
        "centroid_mm": [
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        "geometricTransmission": 1
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      {
        "angle_deg": 5,
        "rmsRadius_mm": 0.08396398538469597,
        "centroid_mm": [
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        "geometricTransmission": 0.9999660879228692
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      {
        "angle_deg": 10,
        "rmsRadius_mm": 0.3083263459146857,
        "centroid_mm": [
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        "geometricTransmission": 0.9922613332173171
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    ],
    "temperature": [
      {
        "temperature_C": 15,
        "index589nm": 1.47129,
        "paraxialBackFocus546nm_mm": 79.07601234626979
      },
      {
        "temperature_C": 20,
        "index589nm": 1.46945,
        "paraxialBackFocus546nm_mm": 79.40076403797308
      },
      {
        "temperature_C": 35,
        "index589nm": 1.46393,
        "paraxialBackFocus546nm_mm": 80.39071398356803
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    ],
    "convergence": [
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        "rays": 64,
        "rmsRadius_mm": 0.1064755171430737,
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      },
      {
        "rays": 256,
        "rmsRadius_mm": 0.10743650909813063,
        "centroid_mm": [
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          0.00012800010371794552
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      },
      {
        "rays": 1024,
        "rmsRadius_mm": 0.10650802825790269,
        "centroid_mm": [
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          -5.153154573633573e-7
        ]
      },
      {
        "rays": 4096,
        "rmsRadius_mm": 0.10646087719430378,
        "centroid_mm": [
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        ]
      },
      {
        "rays": 16384,
        "rmsRadius_mm": 0.10654874162524296,
        "centroid_mm": [
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        ]
      }
    ],
    "absorption": [
      {
        "path_mm": 0,
        "transmission_RGB": [
          1,
          1,
          1
        ]
      },
      {
        "path_mm": 4,
        "transmission_RGB": [
          0.9305308958112057,
          0.8025187979624785,
          0.5272924240430485
        ]
      },
      {
        "path_mm": 8,
        "transmission_RGB": [
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          0.6440364210831413,
          0.27803730045319414
        ]
      },
      {
        "path_mm": 16,
        "transmission_RGB": [
          0.7497615922390413,
          0.4147829116815814,
          0.07730474044329974
        ]
      }
    ],
    "reciprocity": {
      "attempted": 8192,
      "validBackward": 8192,
      "successfulRoundTrips": 8192,
      "failedForward": 0,
      "maxSensorReturnError_mm": 1.4210854715202004e-14,
      "interfaceTransmissionRange": [
        0.9283991132169844,
        0.9285339766409971
      ]
    }
  }
}