Skip to main content

Table 1 Photometric values and color quality characteristics of measured and simulated YAG PC-LEDs

From: Measuring, simulating and optimizing current LED phosphor systems to enhance the visual quality of lighting

  YAG 1 YAG 2 YAG 4 YAG 6
  Simulated Measured Simulated Measured Simulated Measured Simulated Measured
CCT/K 6797 7260 6601 6424 6569 6819 5608 6091
CRI Ra 76 75 76 74 77 74 71 72
CRI R9 24 26 16 11 17 13 -3 -1
luminous flux/lm 24.5 28.9 26.0 26.1 45.2 45.9 44.7 46.9
Δu'v'wtq 0.027 0.025 0.021 0.020 0.022 0.021 0.021 0.018
CQS Q9 77 75 80 79 81 78 80 79
CQS Qg 95 96 94 95 94 94 94 93
CQS Qa 62 63 65 64 65 63 63 63