Newton's Prism Experiment and Goethe's Objections

9. Single ray / Illuminant Equal Energy / Compr. Type C / RGB clipping
Illuminant Equal Energy has a flat spectrum. Compression is done by Type C, RGB clipping.
The spectrum bars are shown banded and continuous. The table shows linear RGB values,
the bars were calculated with gamma encoding for sRGB. RGB clipping does not create
balanced distributions of colors.
No RGB clipping, no RGB gamma encoding
Lam L* a* b* R G B
0.38 0.0 5.5 -9.2 0.3 -0.3 1.8
0.39 0.1 16.9 -25.0 0.9 -0.8 5.5
0.40 0.4 53.0 -51.1 3.0 -2.6 18.5
0.41 1.1 105.2 -85.6 9.1 -8.0 56.5
0.42 3.6 175.9 -134.2 27.4 -24.5 175.7
0.43 10.3 221.0 -171.4 53.9 -49.9 376.9
0.44 17.0 215.6 -177.2 56.7 -56.6 474.6
0.45 23.0 185.5 -168.0 37.6 -46.1 480.4
0.46 29.4 141.2 -152.3 4.6 -25.5 450.9
0.47 36.2 70.2 -121.5 -37.9 8.9 345.1
0.48 44.1 -26.5 -77.8 -78.8 51.5 213.2
0.49 52.7 -134.8 -32.1 -114.2 96.5 115.0
0.50 63.6 -254.0 11.3 -157.2 156.2 56.6
0.51 76.3 -290.7 53.9 -209.6 240.0 16.6
0.52 87.5 -243.4 95.3 -236.0 324.8 -14.9 0.53 94.4 -196.6 122.7 -206.5 371.9 -31.1 0.54 98.2 -155.4 143.9 -136.6 384.8 -40.0 0.55 99.8 -114.3 159.6 -32.9 368.9 -43.2 0.56 99.8 -71.6 166.5 100.8 329.1 -42.3 0.57 98.1 -27.4 166.2 256.4 267.1 -38.1 0.58 94.7 16.6 161.0 416.0 189.7 -31.8 0.59 89.7 57.3 153.1 551.3 108.5 -24.5 0.60 83.5 90.0 142.8 630.4 39.3 -17.5 0.61 76.3 111.3 131.0 631.4 -7.2 -11.8 0.62 68.1 120.1 117.1 556.8 -28.9 -7.6
0.63 58.5 117.6 100.8 427.0 -32.0 -4.7
0.64 48.9 109.4 84.3 301.6 -27.0 -2.7
0.65 39.1 96.7 67.4 192.4 -18.9 -1.5
0.66 29.7 82.0 51.1 112.4 -11.6 -0.8
0.67 20.8 66.9 35.9 59.7 -6.3 -0.4
0.68 13.8 54.7 23.8 32.0 -3.4 -0.2
0.69 7.4 43.1 12.8 15.5 -1.7 -0.1
0.70 3.7 29.5 6.4 7.8 -0.9 -0.1
0.70
0.66
0.62
0.58
0.54
0.50
0.46
0.42
0.38
λ / µ m
13
With RGB clipping, no RGB gamma encoding
Lam L* a* b* R G B
0.38 0.7 4.2 -8.2 0.3 0.0 1.8
0.39 2.1 12.9 -22.0 0.9 0.0 5.5
0.40 7.0 34.1 -40.1 3.0 0.0 18.5
0.41 17.3 49.7 -58.4 9.1 0.0 56.5
0.42 32.4 72.4 -85.6 27.4 0.0 175.7
0.43 40.8 83.1 -93.5 53.9 0.0 255.0
0.44 41.1 83.3 -92.9 56.7 0.0 255.0
0.45 38.5 81.8 -97.4 37.6 0.0 255.0
0.46 33.1 79.5 -106.4 4.6 0.0 255.0
0.47 37.3 64.0 -99.5 0.0 8.9 255.0
0.48 52.4 13.7 -64.0 0.0 51.5 213.2
0.49 61.9 -30.4 -17.2 0.0 96.5 115.0
0.50 73.2 -60.1 26.0 0.0 156.2 56.6
0.51 85.9 -81.4 67.1 0.0 240.0 16.6
0.52 87.7 -86.2 83.2 0.0 255.0 0.0
0.53 87.7 -86.2 83.2 0.0 255.0 0.0
0.54 87.7 -86.2 83.2 0.0 255.0 0.0
0.55 87.7 -86.2 83.2 0.0 255.0 0.0
0.56 91.6 -54.9 87.9 100.8 255.0 0.0
0.57 97.1 -21.6 94.5 255.0 255.0 0.0
0.58 89.1 -6.4 88.7 255.0 189.7 0.0
0.59 77.1 19.0 80.4 255.0 108.5 0.0
0.60 63.6 51.7 72.0 255.0 39.3 0.0
0.61 53.2 80.1 67.2 255.0 0.0 0.0
0.62 53.2 80.1 67.2 255.0 0.0 0.0
0.63 53.2 80.1 67.2 255.0 0.0 0.0
0.64 53.2 80.1 67.2 255.0 0.0 0.0
0.65 47.0 72.9 61.2 192.4 0.0 0.0
0.66 36.7 60.9 51.1 112.4 0.0 0.0
0.67 26.7 49.4 39.5 59.7 0.0 0.0
0.68 18.7 40.1 28.7 32.0 0.0 0.0
0.69 11.2 31.5 17.7 15.5 0.0 0.0
0.70 5.9 24.1 9.3 7.8 0.0 0.0