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Figure 2 | Journal of Mathematics in Industry

Figure 2

From: An inverse method for color uniformity in white LED spotlights

Figure 2

Scatter plot of the measured x and y chromaticity coordinates of the LED used in the numerical experiments in this article. The size of the circles corresponds to the effective intensity. The measured data in the lower left corner correspond small angles of t. The measured data for values of t close to π/2 around (0.423,0.4) are unreliable because of the low light intensities, causing the irregularity.

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