Figure 2
From: An inverse method for color uniformity in white LED spotlights
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 around are unreliable because of the low light intensities, causing the irregularity.
