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Figure 8 | Journal of Solid State Lighting

Figure 8

From: A comprehensive discussion on colour conversion element design of phosphor converted LEDs

Figure 8

MacAdam ellipses of step-size 2, 4 and 5 centered around a CIE x value of about 0.3300. CIE x values resulting for the different globe-top radii for diffuse reflectivity (left side, a), specular reflectivity (middle, b) and specular reflectivity under the assumption that the phosphor concentration is adjusted to result in a CIE x value of about 0.3300 also for a specular reflectivity of 85% (right side, c). GTr refers to the globe-top radius.

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