Ingineria Iluminatului - Journal of Lighting Engineering - Prof. Florin ...

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Figure 5 Colour samples of the background Figure 6 Visual experiment in the booth 5. PERCEIVED ATTRIBUTES AND METRIC QUANTITIES The perceived hues, chromas and lightnesses evaluated by the observers are compared with the metric hues, chromas and lightnesses in U*V*W*, L*a*b*, Nayatani, Hunt, CIECAM97s and NC-IIIC spaces as shown in Figure 7 to 11. Colorimetric quantities of test colour samples prescribed in Munsell colour system under various light sources are calculated from the spectral reflectance of each test colour sample. Perceived attributes of the test colours are compared with the metric quantities in accordance with following procedures. (1) Mean separations between the metric hues and the perceived hues. (2) Average deviations of the metric chromas from the perceived chromas. (3) Mean distances of the metric lightnesses from the perceived lightnesses. (4) Total dislocations of the metric quantities from the perceived attributes. Perceived attributes of colour appearances are desired to be predicted appropriately by corresponding metric quantities in a proper colour space or an adequate colour appearance model. INGINERIA ILUMINATULUI 15-2005 19
20 Xenon Lamp (Illuminant D65) ●: Metric, ○: Perceived, : 5R,5Y,5G,5B,5P Figure 7(a) Perceived attributes and metric quantities of hue and chroma Figure 7(b) Perceived attributes and metric quantities of lightness INGINERIA ILUMINATULUI 15-2005
Page 2 and 3: INGINERIA ILUMINATULUI Lighting Eng
Page 6 and 7: ENERGY EFFICIENCY AND NEW TRENDS IN
Page 8 and 9: OPTICAL MODELLING OF A DIFFUSING PR
Page 10 and 11: cylinder. The innermost layer consi
Page 12 and 13: Figure 13 General recurrence laws -
Page 14 and 15: 6 L. A. Whitehead. 1988. Prism ligh
Page 16 and 17: 2. Nayatani, Hunt, CIECAM97s and NC
Page 18 and 19: Here, X, Y and Z denote the tristim
Page 20 and 21: Table 1 Munsell notation of test co
Page 24 and 25: Incandescent Lamp (Illuminant A)
Page 26 and 27: Mercury Fluorescent Lamp (HF400X)
Page 28 and 29: 5.1 Differences between predicted a
Page 30 and 31: y the functions k1 and k2 at the se
Page 32 and 33: ⎛ i ⎞ d ⎜ ⎟ ⎛ i u 2 ⎞
Page 34 and 35: Figure 4 250 Watt HID lamp voltage
Page 36 and 37: 1. Introduction A STUDY ON INTEGRAT
Page 38 and 39: assumed that the slats are adjusted
Page 40 and 41: Annual autonomy in daylight 100% 90
Page 42 and 43: interrelation of shading and daylig
Page 44 and 45: for an accurate identification to b
Page 46 and 47: lighting systems., Ed.MatrixRom, Bu
Page 48 and 49: mandatory requirements and the prop
Page 50 and 51: eing illuminated. It is not part of
Page 52 and 53: cooperation framework of the lighti
Page 54 and 55: Dr. Axel STOCKMAR, Opening Lecture
Page 56 and 57: The scheduled program of the 3 rd e
Page 58 and 59: Janos BORSANYI, Hungary Decorative
Page 60 and 61: Dr. Florin POP, Professor Dr. Dorin
Page 62 and 63: An important result of the project
Page 64 and 65: (including halogens) still represen
Page 66: • Consumer defend associations ca

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