Knowledge (XXG)

Standard illuminant

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spectral radiance factor data are supplied for five pairs of nonfluorescent samples that are metameric matches. The colorimetric differences of the five pairs are computed for the test illuminant; the average of these differences is taken as the visible range metamerism index and is used as a measure of the quality of the test illuminant as a simulator for nonfluorescent samples. For fluorescent samples, the quality is further assessed in terms of an ultraviolet range metamerism index, defined as the average of the colorimetric differences computed with the test illuminant for three further pairs of samples, each pair consisting of a fluorescent and a nonfluorescent sample which are metameric under the standard illuminant.
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spectral radiance factor data are supplied for five pairs of nonfluorescent samples that are metameric matches. The colorimetric differences of the five pairs are computed for the test illuminant; the average of these differences is taken as the visible range metamerism index and is used as a measure of the quality of the test illuminant as a simulator for nonfluorescent samples. For fluorescent samples, the quality is further assessed in terms of an ultraviolet range metamerism index, defined as the average of the colorimetric differences computed with the test illuminant for three further pairs of samples, each pair consisting of a fluorescent and a nonfluorescent sample which are metameric under the standard illuminant.
2879: 1698: 1264: 1105: 2909: 5657: 2894: 65: 6697: 1413: 6707: 6071: 1148: 25: 759:(CCT) of 4874 K, while C represented average day light with a CCT of 6774 K. Unfortunately, they are poor approximations of any phase of natural daylight, particularly in the short-wave visible and in the ultraviolet spectral ranges. Once more realistic simulations were achievable, illuminants B and C were deprecated in favor of the D series. 1693:{\displaystyle x_{D}={\begin{cases}0.244063+0.09911{\frac {10^{3}}{T}}+2.9678{\frac {10^{6}}{T^{2}}}-4.6070{\frac {10^{9}}{T^{3}}}&4000\ \mathrm {K} \leq T\leq 7000\ \ \mathrm {K} \\0.237040+0.24748{\frac {10^{3}}{T}}+1.9018{\frac {10^{6}}{T^{2}}}-2.0064{\frac {10^{9}}{T^{3}}}&7000\ \mathrm {K} <T\leq 25000\ \mathrm {K} \end{cases}}} 706: 2869:) fluorescent lamps with multiple phosphors, and higher CRIs. Finally, F10–F12 are narrow triband illuminants consisting of three "narrowband" emissions (caused by ternary compositions of rare-earth phosphors) in the R,G,B regions of the visible spectrum. The phosphor weights can be tuned to achieve the desired CCT. 115:
Illuminants A, B, and C were introduced in 1931, with the intention of respectively representing average incandescent light, direct sunlight, and average daylight. Illuminants D (1967) represent variations of daylight, illuminant E is the equal-energy illuminant, while illuminants F (2004) represent
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The process of calculating the white point discards a great deal of information about the profile of the illuminant, and so although it is true that for every illuminant the exact white point can be calculated, it is not the case that knowing the white point of an image alone tells you a great deal
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is intended to represent average daylight and has a correlated colour temperature of approximately 6500 K. CIE standard illuminant D65 should be used in all colorimetric calculations requiring representative daylight, unless there are specific reasons for using a different illuminant. Variations in
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There are no actual daylight light sources, only simulators. Constructing a practical light source that emulates a D-series illuminant is a difficult problem. The chromaticity can be replicated simply by taking a well known light source and applying filters, such as the Spectralight III, that used
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has a CCT of 6504 K (noon light). This is because the value of the constants in Planck's law have been slightly changed since the definition of these canonical illuminants, whose SPDs are based on the original values in Planck's law. The same discrepancy applies to all illuminants in the D
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A method is provided for evaluating the suitability of a test source as a simulator of CIE Standard Illuminants D55, D65, or D75. The Supplement, prepared in 1999, adds the CIE Illuminant D50 to the line of illuminants where the method can be applied to. For each of these standard illuminants,
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A method is provided for evaluating the suitability of a test source as a simulator of CIE Standard Illuminants D55, D65, or D75. The Supplement, prepared in 1999, adds the CIE Illuminant D50 to the line of illuminants where the method can be applied to. For each of these standard illuminants,
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CIE standard illuminant A is intended to represent typical, domestic, tungsten-filament lighting. Its relative spectral power distribution is that of a Planckian radiator at a temperature of approximately 2856 K. CIE standard illuminant A should be used in all applications of colorimetry
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There are instructions on how to experimentally produce light sources ("standard sources") corresponding to the older illuminants. For the relatively newer ones (such as series D), experimenters are left to measure to profiles of their sources and compare them to the published spectra:
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If an image is recorded in tristimulus coordinates (or in values which can be converted to and from them), then the white point of the illuminant used gives the maximum value of the tristimulus coordinates that will be recorded at any point in the image, in the absence of
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Illuminant C does not have the status of CIE standard illuminants but its relative spectral power distribution, tristimulus values and chromaticity coordinates are given in Table T.1 and Table T.3, as many practical measurement instruments and calculations still use this
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Daylight locus in the CIE 1960 UCS. The isotherms are perpendicular to the Planckian locus. The two sections of the daylight locus, from 4000–7000 K and 7000–25000 K, are color-coded. Note that the two loci are separated by a fairly even distance, of around
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LED-B1 through B5 defines LEDs with phosphor-converted blue light. LED-BH1 defines a blend of phosphor-converted blue and a red LED. LED-RGB1 defines the white light produced by a tricolor LED mix. LED-V1 and V2 define LEDs with phosphor-converted violet light.
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At present no artificial source is recommended to realize CIE standard illuminant D65 or any other illuminant D of different CCT. It is hoped that new developments in light sources and filters will eventually offer sufficient basis for a CIE
1910: 2065: 1099: 816:. The solutions are separated by a sheet of uncolored glass. The amounts of the ingredients are carefully chosen so that their combination yields a color temperature conversion filter; that is, the filtered light is still white. 2646: 2475: 2653: 2495: 2818:
tristimulus values, thus its chromaticity coordinates are (x,y)=(1/3,1/3). This is by design; the XYZ color matching functions are normalized such that their integrals over the visible spectrum are the same.
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about ISO 7589 standard illuminants; CIE indoor ID50 and ID65 illuminants; CIE FL3.1 through FL3.15 "new fluorescent" illuminants; CIE HP "high-pressure discharge" illuminants, all found with references in
2234: 2151: 5022:...it is standard for reference white to correspond to light having the spectral and/or colorimetric properties of CIE Illuminant D65 (except in Japan, where the standard white reference is 9300 K). 1772: 2601: 2430: 2293: 4354:
G. T. Winch; M. C. Boshoff; C. J. Kok & A. G. du Toit (April 1966). "Spectroradiometric and Colorimetric Characteristics of Daylight in the Southern Hemisphere: Pretoria, South Africa".
191: 701:{\displaystyle S_{A}(\lambda )=100\left({\frac {560}{\lambda }}\right)^{5}{\frac {\exp {\frac {1.435\times 10^{7}}{2848\times 560}}-1}{\exp {\frac {1.435\times 10^{7}}{2848\lambda }}-1}}.} 371: 2822:
Illuminant E is not a black body, so it does not have a color temperature, but it can be approximated by a D series illuminant with a CCT of 5455 K. (Of the canonical illuminants, D
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the relative spectral power distribution of daylight are known to occur, particularly in the ultraviolet spectral region, as a function of season, time of day, and geographic location.
434: 1850: 1302: 2386:, since all the relative SPDs have been normalized about this point. In order to match all significant digits of the published data of the canonical illuminants the values of M 418: 1351: 112:
for its French name) is the body responsible for publishing all of the well-known standard illuminants. Each of these is known by a letter or by a letter-number combination.
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The derived chromaticities were found to be much closer to the full radiator locus than those previously published, which had been obtained in the northern hemisphere.
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Illuminants B and C are easily achieved daylight simulations. They modify illuminant A by using liquid filters. B served as a representative of noon sunlight, with a
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Kelly, Kenneth L. (August 1963). "Lines of Constant Correlated Color Temperature Based on MacAdam's (u,v) Uniform Chromaticity Transformation of the CIE Diagram".
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Hernández-Andrés, Javier; Javier Romero; Antonio García-Beltrán; Juan L. Nieves (February 20, 1998). "Testing Linear Models on Spectral Daylight Measurements".
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Judd, Deane B.; MacAdam, David L.; Wyszecki, Günter (August 1964). "Spectral Distribution of Typical Daylight as a Function of Correlated Color Temperature".
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was revised from 0.01438 m·K to 0.014388 m·K (and before that, it was 0.01435 m·K when illuminant A was standardized). This difference shifted the
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Davis, Raymond; Gibson, Kasson S. (January 21, 1931). "Filters for the reproduction of sunlight and daylight and the determination of color temperature".
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CIE has defined the color coordinates of several different white Illuminants, but within Lumileds, CIE illuminant E is used for all color calculations
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Hernández-Andrés, Javier; Javier Romero; Juan L. Nieves; Raymond L. Lee Jr (June 2001). "Color and spectral analysis of daylight in southern Europe".
4818: 4807: 2990:(CCTs) are given below. The CIE chromaticity coordinates are given for both the 2 degree field of view (1931) and the 10 degree field of view (1964). 6474: 5212: 1242:
s analysis with modern computational methods. In several of these studies, the daylight locus is notably closer to the Planckian locus than in Judd
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In order to avoid further possible changes in the color temperature, the CIE now specifies the SPD directly, based on the original (1931) value of c
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A list of standardized illuminants, their CIE chromaticity coordinates (x,y) of a perfectly reflecting (or transmitting) diffuser, and their
1132:) is the mean of all the SPD samples, which is the best reconstituted SPD that can be formed with only a fixed vector. The second vector (S 5066: 830:
Relative spectral power distribution of illuminant D and a black body of the same correlated color temperature (in red), normalized about
6540: 5164: 850: 4339:) functions have been linearly interpolated at 5 nm steps and for even finer step-size also a linear interpolation has been recommended 781:
and Kasson S. Gibson in 1931, have a relatively high absorbance at the red end of the spectrum, effectively increasing the CCT of the
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filtered incandescent lamps. However, the SPDs of these sources deviate from the D-series SPD, leading to bad performance on the CIE
2301: 5514: 5015: 2736:{\displaystyle {\begin{alignedat}{2}X&={}&94.811\\Y&={}&100{\phantom {.000}}\\Z&={}&107.304\end{alignedat}}} 2578:{\displaystyle {\begin{alignedat}{2}X&={}&95.047\\Y&={}&100{\phantom {.000}}\\Z&={}&108.883\end{alignedat}}} 6485: 4154:
Tzeng, Di-Yuan; Berns, Roy S. (April 2005). "A review of principal component analysis and its applications to color technology".
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by using Moon's spectral absorbance data of the Earth's atmosphere. The tabulated SPDs presented by the CIE today are derived by
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Index tests how well five sets of metameric samples match under the test and reference illuminant. In a manner similar to the
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Simonds, John L. (August 1963). "Application of Characteristic Vector Analysis to Photographic and Optical Response Data".
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Lam, Yuk-Ming; Xin, John H. (August 2002). "Evaluation of the quality of different D65 simulators for visual assessment".
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Lam, Yuk-Ming; Xin, John H. (August 2002). "Evaluation of the quality of different D65 simulators for visual assessment".
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that is published. Standard illuminants provide a basis for comparing images or colors recorded under different lighting.
5111: 4989: 4702: 3948: 3851: 166: 3987: 3894: 3017: 2987: 2799: 2754: 1160: 1144:) corresponds to pink–green variation (across the locus) caused by the presence of water in the form of vapor and haze. 1137: 756: 308:{\displaystyle M_{e,\lambda }(\lambda ,T)={\frac {c_{1}\lambda ^{-5}}{\exp \left({\frac {c_{2}}{\lambda T}}\right)-1}}.} 3888:
Standard Method of Assessing the Spectral Quality of Daylight Simulators for Visual Appraisal and Measurement of Colour
2814:. It is useful as a theoretical reference; an illuminant that gives equal weight to all wavelengths. It also has equal 849:
By 1964, several spectral power distributions (SPDs) of daylight had been measured independently by H. W. Budde of the
6348: 6008: 5782: 4614: 3459: 2240: 1798: 1314: 866: 93: 69: 4923: 2908: 1797:, differ slightly from what their names suggest. For example, D50 has a CCT of 5003 K ("horizon" light), while 6550: 6137: 5686: 5567: 5293: 2993: 2992:
The color swatches represent the color of each white point, automatically calculated by Knowledge (XXG) using the
321: 526:{\displaystyle T_{new}=T_{old}\times {\frac {1.4388}{1.435}}=2848\ {\text{K}}\times 1.002648=2855.54\ {\text{K}}.} 6315: 6208: 5866: 5137: 5034: 174: 4877: 2893: 907: 6525: 6343: 5993: 5726: 5298: 160:
involving the use of incandescent lighting, unless there are specific reasons for using a different illuminant.
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Sastri, V.D.P. (January 11, 1976). "Locus of daylight chromaticities in relation to atmospheric conditions".
1821: 6577: 6530: 5661: 2962: 2417: 1354: 826: 6535: 5179: 4555: 4403:
Sastri, V.D.P.; Das, S.R. (March 1968). "Typical Spectral Distributions and Color for Tropical Daylight".
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Displays simply use the white point of this standard illuminant; they do not emit the required spectrum.
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is the closest.) Manufacturers sometimes compare light sources against illuminant E to calculate the
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CIE, Technical Report (2004) Colorimetry, 3rd ed., Publication 15:2004, CIE Central Bureau, Vienna
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Das, S.R.; Sastri, V.D.P. (March 1965). "Spectral Distribution and Color of Tropical Daylight".
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Henderson, Stanley Thomas; Hodgkiss, D. (1964). "The spectral energy distribution of daylight".
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Henderson, Stanley Thomas; Hodgkiss, D. (1963). "The spectral energy distribution of daylight".
882: 428:, changing the color temperature of the illuminant from its nominal 2848 K to 2856 K: 5636: 4645:
The coefficients differ from those in the original paper due to the change in the constants in
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The spectrum of a standard illuminant, like any other profile of light, can be converted into
1905:{\displaystyle 6500\ {\text{K}}\times {\frac {1.438776877\dots }{1.4380}}=6503.51\ {\text{K}}} 782: 4223:
Moon, Parry (November 1940). "Proposed standard solar-radiation curves for engineering use".
3269: 6620: 6615: 6595: 6590: 6353: 6120: 5998: 5948: 5943: 5915: 5881: 5871: 5741: 5499: 5464: 5273: 4953: 4745: 4565: 4516: 4476: 4445: 4414: 4391: 4365: 4297: 4232: 4205: 4163: 4136: 4107: 4073: 4045: 4010: 3924: 3916: 3220: 3165: 2843: 2811: 2775: 813: 136: 1170: 846:. They are difficult to produce artificially, but are easy to characterize mathematically. 6650: 6640: 6635: 6600: 6502: 6338: 6285: 6175: 6108: 5923: 5839: 5817: 5579: 5539: 5529: 5524: 5519: 5494: 5479: 5283: 5265: 4836: 4832: 4654: 3893:
Prepared by TC 1-53 "A Standard Method for Assessing the Quality of Daylight Simulators".
2795: 2060:{\displaystyle S_{D}(\lambda )=S_{0}(\lambda )+M_{1}S_{1}(\lambda )+M_{2}S_{2}(\lambda ),} 1152: 1094:{\displaystyle S_{D}(\lambda )=S_{0}(\lambda )+M_{1}S_{1}(\lambda )+M_{2}S_{2}(\lambda ).} 425: 4646: 2865:(the CRI formula was chosen such that F4 would have a CRI of 51). F7–F9 are "broadband" ( 182: 4551: 4512: 4441: 4069: 4041: 4001:
Condit, Harold R.; Grum, Frank (July 1964). "Spectral energy distribution of daylight".
1136:) corresponds to yellow–blue variation (along the locus), accounting for changes in the 43:
Please expand the article to include this information. Further details may exist on the
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By the time the D-series was formalized by the CIE, a computation of the chromaticity
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Each filter uses a pair of solutions, comprising specific amounts of distilled water,
64: 6725: 6585: 6170: 6056: 5981: 5958: 5898: 5822: 5805: 5711: 4594:. CGIV (European Conference on Colour Graphics, Imaging and Vision). pp. 437–442 4457: 4077: 4049: 878: 874: 805: 89: 4449: 1238:
Similar studies have been undertaken in other parts of the world, or repeating Judd
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series of illuminants are designed to represent natural daylight and lie along the
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In Japan, the chromaticity of studio monitors is adjusted to a D-white at 9 300 K.
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In simpler terms, the SPD of the studied daylight samples can be expressed as the
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revealed that the SPDs could be satisfactorily approximated by using the mean (S
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that photographers and cinematographers use today, albeit much less convenient.
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For commercial examples of calcium halophosphate fluorescents, see for example
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F1–F6 "standard" fluorescent lamps consist of two semi-broadband emissions of
1147: 178: 6427: 6400: 6395: 5904: 5419: 5407: 5402: 5333: 5328: 4569: 3856:. 51.2-1999 (including Supplement 1-1999). Paris: Bureau central de la CIE. 2928: 2854: 2641:{\displaystyle {\begin{aligned}x&=0.31382\\y&=0.33100\end{aligned}}} 2470:{\displaystyle {\begin{aligned}x&=0.31272\\y&=0.32903\end{aligned}}} 786: 5351: 5343: 4682:
Wyszecki, Gunter (1970). "Development of New CIE Sources for Colorimetry".
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Illuminant E is an equal-energy radiator; it has a constant SPD inside the
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is the illuminant's CCT. Note that the CCTs of the canonical illuminants, D
24: 4465:
Dixon, E.R. (April 1978). "Spectral distribution of Australian daylight".
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A Method for Assessing the Quality of Daylight Simulators for Colorimetry
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A Method for Assessing the Quality of Daylight Simulators for Colorimetry
2861:. F4 is of particular interest since it was used for calibrating the CIE 2858: 2850: 2758: 2382:
SPDs, depicted in figure. The characteristic vectors both have a zero at
801: 2953:. The set of three tristimulus coordinates of an illuminant is called a 1818:—and can be "rectified" by multiplying the nominal color temperature by 1258:
ISO 10526:1999/CIE S005/E-1998, CIE Standard Illuminants for Colorimetry
6454: 5736: 5619: 5509: 4990:"RECOMMENDATION ITU-R BT.470-6 - CONVENTIONAL TELEVISION SYSTEMS, p.16" 3929: 2872:
The spectra of these illuminants are published in Publication 15:2004.
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Schanda, János (2007). "3. CIE Colorimetry". In Schanda, János (ed.).
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Analyses using the faster computation of the 1990s and 2000s include:
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due to proportion of indirect to direct sunlight. The third vector (S
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that can easily emulate the A, D, and E illuminants with high CRI.
735:, and the chromaticity coordinates using the standard observer are 711:
The coefficients have been selected to achieve a normalized SPD of
6305: 6300: 6290: 6260: 5731: 5702: 5443: 5438: 5426: 5414: 5387: 5368: 5363: 5303: 5197: 4302:
10.1002/1520-6378(200008)25:4<250::AID-COL5>3.0.CO;2-D
3953:. Publication 15:2004 (3rd ed.). CIE Central Bureau, Vienna. 3136: 2961:, then the white point can equivalently be expressed as a pair of 2789: 2765:
systems, truncates the CIE 1931 coordinates to x=0.3127, y=0.329.
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have to be rounded to three decimal places before calculation of
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mixing of phosphor-converted blue LED and red LED (blue-hybrid)
3132: 2762: 5675: 5671: 5126: 3026: 2371:{\displaystyle S_{0}(\lambda ),S_{1}(\lambda ),S_{2}(\lambda )} 6371: 6265: 6030: 5534: 5375: 5356: 5122: 5067:"Guideline for Colorimetry for 1125/60 HDTV Production System" 5010:. San Francisco, CA: Morgan Kaufmann Publishers. p. 643. 18: 2927:
Publication 15:2018 introduces new illuminants for different
147:, the average difference between the metamers is calculated. 4783:"Optical Testing for SuperFlux, SnapLED and LUXEON Emitters" 4812: Method for making a calcium halophosphate phosphor or 2229:{\displaystyle M_{2}=(0.0300-31.4424x_{D}+30.0717y_{D})/M,} 1923:) that corresponds to those coordinates, the coefficients M 1686: 1248:
The CIE positions D65 as the standard daylight illuminant:
5035:"Recommendation BT.470-6: Conventional Television Systems" 2146:{\displaystyle M_{1}=(-1.3515-1.7703x_{D}+5.9114y_{D})/M,} 1407:. First, the chromaticity coordinates must be determined: 785:
to daylight levels. This is similar in function to a CTB
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For the vision capacities of organisms or machines, see
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Characteristic vectors of illuminant D; component SPDs S
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Digital video and HDTV : algorithms and interfaces
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types with CCTs ranging from approx. 2700 K to 6600 K.
5076:(in Japanese). 21 July 1998. p. 4. Archived from 1767:{\displaystyle y_{D}=-3.000x_{D}^{2}+2.870x_{D}-0.275} 2656: 2599: 2498: 2428: 2304: 2243: 2160: 2074: 1948: 1858: 1824: 1707: 1416: 1367: 1323: 1274: 1173: 982: 910: 549: 437: 379: 324: 194: 4823: Single component calcium halophosphate phosphor 4588:
Group theoretical investigations of daylight spectra
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Thanh Hai Bui; Reiner Lenz; Tomas Landelius (2004).
139:, to assess the quality of daylight simulators. The 135:
Nevertheless, they do provide a measure, called the
6663: 6576: 6501: 6494: 6445: 6364: 6314: 6246: 6237: 6156: 6089: 6078: 5967: 5914: 5796: 5719: 5710: 5548: 5452: 5342: 5264: 5211: 5178: 5093:"D93: D93は9,305 K色温度であり、日本におけるモニタの基準白色として使用されている。" 4896:
Equivalent White Light Sources, and CIE Illuminants
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Spectral power distribution of Illuminants Series F
4276:"Re-evaluation of daylight spectral distributions" 2735: 2640: 2577: 2469: 2370: 2287: 2228: 2145: 2059: 1904: 1844: 1766: 1692: 1399: 1345: 1296: 1191: 1093: 947: 700: 525: 412: 365: 307: 6324:Linguistic relativity and the color naming debate 4250:CIE 1931 and 1964 Standard Colorimetric Observers 4181:Commission Internationale de l'Eclairage (1964). 2977:about the illuminant that was used to record it. 2842:series of illuminants represent various types of 2778:. Better sources were achieved in the 2010s with 2648:and the corresponding XYZ tristimulus values are 1353:of a D series illuminant can be derived from its 2288:{\displaystyle M=0.0241+0.2562x_{D}-0.7341y_{D}} 318:At the time of standardizing illuminant A, both 4274:Kránicz, Balázs; Schanda, János (August 2000). 1250: 761: 157: 122: 5074:Association of Radio Industries and Businesses 4929: 4903: 5687: 5138: 3821:Schanda, János (2007). "3: CIE Colorimetry". 2973:. It is called the white point of the image. 1199:for a particular isotherm was included. Judd 901:relation, later known as the daylight locus: 373:(which does not affect the relative SPD) and 366:{\displaystyle c_{1}=2\pi \cdot h\cdot c^{2}} 155:The CIE defines illuminant A in these terms: 8: 4671:. John Wiley & Sons. Appendix A, p. 74. 1163:) and representative illuminant coordinates 72:(SPDs) of CIE illuminants A, B, and C from 6706: 6498: 6243: 6086: 5716: 5694: 5680: 5672: 5145: 5131: 5123: 4615:"CIE Standard Illuminants for Colorimetry" 4350:Studies from the 1960s and 1970s include: 3783: 3781: 3779: 3777: 3010: 3007: 2998: 1159:, along with isotherms (lines of constant 948:{\displaystyle y=2.870x-3.000x^{2}-0.275.} 885:analyzed these samples and found that the 420:were different. In 1968, the estimate of c 116:fluorescent lamps of various composition. 4925:CIE F-series Spectral Data, CIE 15.2:1986 4669:Colorimetry: understanding the CIE system 4559: 4291: 3942: 3940: 3928: 3823:Colorimetry: Understanding the CIE System 3816: 3814: 3812: 3810: 3808: 3806: 2722: 2700: 2699: 2692: 2671: 2657: 2655: 2600: 2598: 2564: 2542: 2541: 2534: 2513: 2499: 2497: 2429: 2427: 2353: 2331: 2309: 2303: 2279: 2263: 2242: 2215: 2206: 2190: 2165: 2159: 2132: 2123: 2107: 2079: 2073: 2039: 2029: 2007: 1997: 1975: 1953: 1947: 1897: 1873: 1865: 1857: 1831: 1825: 1823: 1752: 1736: 1731: 1712: 1706: 1678: 1658: 1642: 1632: 1626: 1612: 1602: 1596: 1579: 1573: 1555: 1532: 1516: 1506: 1500: 1486: 1476: 1470: 1453: 1447: 1430: 1421: 1415: 1388: 1375: 1366: 1328: 1322: 1279: 1273: 1172: 1128:of three, fixed SPDs. The first vector (S 1073: 1063: 1041: 1031: 1009: 987: 981: 965:) and first two characteristic vectors (S 933: 909: 865:, and S. T. Henderson and D. Hodgkiss of 774:Illuminant B was not so honored in 2004. 669: 656: 622: 609: 600: 594: 580: 554: 548: 515: 495: 476: 461: 442: 436: 402: 384: 378: 357: 329: 323: 273: 267: 246: 236: 229: 199: 193: 6475:International Commission on Illumination 4641: 4639: 3268:high-efficiency blue phosphor monitors, 1203:then extended the reconstituted SPDs to 1146: 167:CIE Standard Illuminants for Colorimetry 106:International Commission on Illumination 63: 4183:Proceedings of the 15th Session, Vienna 3802: 3773: 2874: 1845:{\displaystyle {\frac {c_{2}}{1.4380}}} 6465:Color Association of the United States 4764:"CIE Illuminant Technology - Yujileds" 3485:D50 simulator, Sylvania F40 Design 50 3130:obsolete, average / North sky daylight 1231:. However, there is a proposal to use 5108:Selected colorimetric tables in Excel 5042:International Telecommunication Union 4429:Journal of Physics D: Applied Physics 4091: 4089: 4087: 3980:Precision Measurement and Calibration 3190:mid-morning / mid-afternoon daylight 3016: 3004: 3000:White points of standard illuminants 2857:activations in calcium halophosphate 7: 3724:mixing of red, green, and blue LEDs 2981:White points of standard illuminants 5044:. ITU. 30 November 1998. p. 16 4707:. Paris: Bureau central de la CIE. 873:, totaling among them 622 samples. 851:National Research Council of Canada 16:Theoretical source of visible light 6329:Blue–green distinction in language 4058:British Journal of Applied Physics 4030:British Journal of Applied Physics 3107:obsolete, direct sunlight at noon 2749:light, its coordinates are also a 1679: 1659: 1556: 1533: 1297:{\displaystyle \Delta _{uv}=0.003} 1276: 857:, H. R. Condit and F. Grum of the 14: 4225:Journal of the Franklin Institute 6705: 6696: 6695: 6486:International Colour Association 6069: 5656: 5655: 4738:Color Research & Application 4280:Color Research & Application 4156:Color Research & Application 3909:Color Research & Application 2907: 2892: 2877: 1919:To determine the D-series SPD (S 777:The liquid filters, designed by 413:{\displaystyle c_{2}=h\cdot c/k} 23: 5118:Light sources & Illuminants 1931:of the characteristic vectors S 1346:{\displaystyle S_{D}(\lambda )} 6481:International Color Consortium 6470:International Colour Authority 4878:"A Review of RGB color spaces" 4768:Yujileds - High CRI LED Leader 3508:cool white deluxe fluorescent 3462:simulator, daylight simulator 2365: 2359: 2343: 2337: 2321: 2315: 2212: 2174: 2129: 2088: 2051: 2045: 2019: 2013: 1987: 1981: 1965: 1959: 1394: 1368: 1340: 1334: 1186: 1174: 1085: 1079: 1053: 1047: 1021: 1015: 999: 993: 959:Characteristic vector analysis 566: 560: 223: 211: 1: 6546:List of Crayola crayon colors 4701:CIE Technical Report (1999). 4653:for the current version, and 4237:10.1016/S0016-0032(40)90364-7 3947:CIE Technical Report (2004). 3850:CIE Technical Report (1999). 2988:correlated color temperatures 1400:{\displaystyle (x_{D},y_{D})} 719:. The tristimulus values are 3988:National Bureau of Standards 2794:Illuminant E is beneath the 2755:correlated color temperature 1161:correlated color temperature 1138:correlated color temperature 757:correlated color temperature 70:spectral power distributions 6349:Traditional colors of Japan 6126:Achromatic colors (Neutral) 6009:Multi-primary color display 5783:Spectral power distribution 4621:. CIE. 1999. Archived from 3577:Philips TL83, Ultralume 30 3554:Philips TL84, Ultralume 40 3531:Philips TL85, Ultralume 50 2378:are the mean and first two 1315:spectral power distribution 867:Thorn Electrical Industries 733:) = (109.85, 100.00, 35.58) 94:spectral power distribution 88:is a theoretical source of 6758: 5568:Colour Index International 4952:, vol. CIE 015:2018, 4863:"Blackbody color datafile" 4078:10.1088/0508-3443/15/8/310 4050:10.1088/0508-3443/14/3/307 3895:ISO Standard 23603:2005(E) 3766:phosphor-converted violet 3745:phosphor-converted violet 2994:Color temperature template 2942: 2780:phosphor-coated white LEDs 2589:supplementary 10° observer 895:) chromaticity coordinates 6691: 6209:Color realism (art style) 6067: 5867:Evolution of color vision 5652: 5160: 5006:Poynton, Charles (2003). 4979:47 CFR § 73.682 (20) (iv) 4450:10.1088/0022-3727/9/1/001 3055: 3047: 3039: 3031: 175:spectral radiant exitance 6526:List of colors (compact) 6344:Color in Chinese culture 5994:Digital image processing 5727:Electromagnetic spectrum 5116:Konica Minolta Sensing: 4950:Colorimetry, 4th Edition 3682:phosphor-converted blue 3661:phosphor-converted blue 3640:phosphor-converted blue 3619:phosphor-converted blue 3598:phosphor-converted blue 3436:light white fluorescent 3084:incandescent / tungsten 2963:chromaticity coordinates 2418:chromaticity coordinates 1355:chromaticity coordinates 769:CIE, Publication 15:2004 6531:List of colors by shade 4570:10.1364/JOSAA.18.001325 3390:warm white fluorescent 3344:cool white fluorescent 6536:List of color palettes 4481:10.1364/JOSA.68.000437 4419:10.1364/JOSA.58.000391 4396:10.1364/JOSA.55.000319 4370:10.1364/JOSA.56.000456 4210:10.1364/JOSA.53.000999 4141:10.1364/JOSA.53.000968 4112:10.1364/JOSA.54.001031 4015:10.1364/JOSA.54.000937 2807: 2737: 2642: 2579: 2481:XYZ tristimulus values 2471: 2372: 2289: 2230: 2147: 2061: 1906: 1846: 1768: 1694: 1401: 1347: 1305: 1298: 1261: 1193: 1164: 1121: 1095: 949: 871:Enfield (north London) 835: 772: 745:) = (0.44758, 0.40745) 702: 527: 414: 367: 309: 171: 133: 81: 34:is missing information 6460:Color Marketing Group 6215:On Vision and Colours 6148:Tinctures in heraldry 5759:Structural coloration 3885:CIE Standard (2004). 3413:daylight fluorescent 3321:daylight fluorescent 2923:Illuminant series LED 2863:color rendering index 2798:, and roughly at the 2793: 2753:, corresponding to a 2745:Since D65 represents 2738: 2643: 2580: 2472: 2373: 2290: 2231: 2148: 2062: 1907: 1847: 1769: 1695: 1402: 1348: 1299: 1266: 1194: 1192:{\displaystyle (x,y)} 1150: 1107: 1096: 950: 859:Eastman Kodak Company 829: 703: 528: 415: 368: 310: 145:color rendering index 108:(usually abbreviated 67: 6742:Standard illuminants 6541:List of color spaces 6433:Tint, shade and tone 6316:Cultural differences 6131:Polychromatic colors 6116:Complementary colors 6104:Monochromatic colors 5585:Federal Standard 595 5165:List of color spaces 4958:10.25039/TR.015.2018 4521:10.1364/AO.37.000971 2957:. If the profile is 2844:fluorescent lighting 2705: 2654: 2597: 2547: 2496: 2426: 2415:CIE 1931 color space 2411:standard 2° observer 2302: 2241: 2158: 2072: 1946: 1856: 1822: 1705: 1414: 1365: 1359:CIE 1931 color space 1321: 1272: 1233:spline interpolation 1221:linear interpolation 1171: 980: 908: 547: 435: 377: 322: 192: 6521:List of colors: N–Z 6516:List of colors: G–M 6511:List of colors: A–F 4770:. 5 September 2023. 4552:2001JOSAA..18.1325H 4513:1998ApOpt..37..971H 4442:1976JPhD....9L...1S 4070:1964BJAP...15..947H 4042:1963BJAP...14..125H 3245:North sky daylight 3001: 2867:full-spectrum light 2834:Illuminant series F 2701: 2543: 1741: 1155:is depicted on the 897:followed a simple, 863:Rochester, New York 820:Illuminant series D 751:Illuminants B and C 86:standard illuminant 6568:List of web colors 6563:List of RAL colors 5969:Color reproduction 5934:Lüscher color test 5771:Color of chemicals 5110:, as published in 4861:Mitchell Charity. 3829:. pp. 37–46. 3827:Wiley Interscience 3367:white fluorescent 2999: 2951:tristimulus values 2808: 2769:Daylight simulator 2733: 2731: 2638: 2636: 2575: 2573: 2467: 2465: 2368: 2285: 2226: 2143: 2057: 1902: 1842: 1764: 1727: 1690: 1685: 1397: 1343: 1306: 1294: 1189: 1165: 1126:linear combination 1122: 1091: 945: 836: 779:Raymond Davis, Jr. 698: 523: 410: 363: 305: 82: 6719: 6718: 6659: 6658: 6441: 6440: 6233: 6232: 6223:Theory of Colours 6065: 6064: 5977:Color photography 5929:Color preferences 5872:Impossible colors 5862:Color vision test 5857:Color temperature 5835:Color calibration 5764:Animal coloration 5669: 5668: 4967:978-3-902842-13-8 4750:10.1002/col.10061 4714:978-92-9034-051-5 4260:in increments of 4168:10.1002/col.20086 3960:978-3-901906-33-6 3921:10.1002/col.10061 3863:978-92-9034-051-5 3836:978-0-470-04904-4 3770: 3769: 2828:excitation purity 1900: 1896: 1886: 1868: 1864: 1840: 1677: 1657: 1648: 1618: 1588: 1554: 1551: 1531: 1522: 1492: 1462: 1227:data set down to 783:incandescent lamp 693: 684: 640: 588: 518: 514: 498: 494: 484: 300: 287: 62: 61: 6749: 6709: 6708: 6699: 6698: 6499: 6365:Color dimensions 6354:Human skin color 6244: 6121:Analogous colors 6087: 6073: 5999:Color management 5916:Color psychology 5882:Opponent process 5798:Color perception 5717: 5696: 5689: 5682: 5673: 5659: 5658: 5645: 5274:RGB color spaces 5147: 5140: 5133: 5124: 5096: 5095: 5090: 5088: 5083:on 13 April 2013 5082: 5071: 5063: 5057: 5056: 5051: 5049: 5039: 5031: 5025: 5024: 5003: 4997: 4996: 4994: 4986: 4980: 4977: 4971: 4970: 4946: 4940: 4939: 4938: 4937: 4928:, archived from 4920: 4914: 4913: 4912: 4911: 4902:, archived from 4901: 4891: 4885: 4884: 4882: 4873: 4867: 4866: 4858: 4852: 4850: 4846: 4843:increments from 4842: 4830: 4824: 4822: 4821: 4817: 4811: 4810: 4806: 4799: 4793: 4792: 4787: 4778: 4772: 4771: 4760: 4754: 4753: 4733: 4727: 4726: 4717:. Archived from 4698: 4692: 4691: 4679: 4673: 4672: 4664: 4658: 4643: 4634: 4633: 4631: 4630: 4611: 4605: 4602: 4600: 4599: 4593: 4581: 4563: 4546:(6): 1325–1335. 4532: 4493: 4487: 4484: 4461: 4422: 4399: 4376: 4348: 4342: 4341: 4295: 4271: 4265: 4263: 4259: 4255: 4247: 4241: 4240: 4220: 4214: 4213: 4193: 4187: 4186: 4178: 4172: 4171: 4151: 4145: 4144: 4122: 4116: 4115: 4106:(8): 1031–1040. 4093: 4082: 4081: 4053: 4025: 4019: 4018: 3998: 3992: 3991: 3975: 3969: 3968: 3963:. Archived from 3944: 3935: 3934: 3932: 3904: 3898: 3892: 3882: 3876: 3875: 3866:. Archived from 3847: 3841: 3840: 3818: 3788: 3785: 3221:sRGB color space 3002: 2911: 2896: 2881: 2812:visible spectrum 2776:metamerism index 2742: 2740: 2739: 2734: 2732: 2723: 2707: 2706: 2693: 2672: 2647: 2645: 2644: 2639: 2637: 2584: 2582: 2581: 2576: 2574: 2565: 2549: 2548: 2535: 2514: 2489: 2476: 2474: 2473: 2468: 2466: 2385: 2377: 2375: 2374: 2369: 2358: 2357: 2336: 2335: 2314: 2313: 2294: 2292: 2291: 2286: 2284: 2283: 2268: 2267: 2235: 2233: 2232: 2227: 2219: 2211: 2210: 2195: 2194: 2170: 2169: 2152: 2150: 2149: 2144: 2136: 2128: 2127: 2112: 2111: 2084: 2083: 2066: 2064: 2063: 2058: 2044: 2043: 2034: 2033: 2012: 2011: 2002: 2001: 1980: 1979: 1958: 1957: 1939:are determined: 1911: 1909: 1908: 1903: 1901: 1898: 1894: 1887: 1882: 1874: 1869: 1866: 1862: 1851: 1849: 1848: 1843: 1841: 1836: 1835: 1826: 1773: 1771: 1770: 1765: 1757: 1756: 1740: 1735: 1717: 1716: 1699: 1697: 1696: 1691: 1689: 1688: 1682: 1675: 1662: 1655: 1649: 1647: 1646: 1637: 1636: 1627: 1619: 1617: 1616: 1607: 1606: 1597: 1589: 1584: 1583: 1574: 1559: 1552: 1549: 1536: 1529: 1523: 1521: 1520: 1511: 1510: 1501: 1493: 1491: 1490: 1481: 1480: 1471: 1463: 1458: 1457: 1448: 1426: 1425: 1406: 1404: 1403: 1398: 1393: 1392: 1380: 1379: 1352: 1350: 1349: 1344: 1333: 1332: 1303: 1301: 1300: 1295: 1287: 1286: 1259: 1230: 1226: 1218: 1214: 1210: 1206: 1198: 1196: 1195: 1190: 1100: 1098: 1097: 1092: 1078: 1077: 1068: 1067: 1046: 1045: 1036: 1035: 1014: 1013: 992: 991: 954: 952: 951: 946: 938: 937: 833: 814:ammonium sulfate 770: 746: 734: 718: 714: 707: 705: 704: 699: 694: 692: 685: 683: 675: 674: 673: 657: 648: 641: 639: 628: 627: 626: 610: 601: 599: 598: 593: 589: 581: 559: 558: 532: 530: 529: 524: 519: 516: 512: 499: 496: 492: 485: 477: 472: 471: 453: 452: 419: 417: 416: 411: 406: 389: 388: 372: 370: 369: 364: 362: 361: 334: 333: 314: 312: 311: 306: 301: 299: 292: 288: 286: 278: 277: 268: 255: 254: 253: 241: 240: 230: 210: 209: 169: 137:metamerism index 131: 79: 75: 57: 54: 48: 27: 19: 6757: 6756: 6752: 6751: 6750: 6748: 6747: 6746: 6722: 6721: 6720: 6715: 6687: 6655: 6572: 6490: 6447: 6437: 6360: 6339:Blue in culture 6310: 6229: 6176:Secondary color 6152: 6109:black-and-white 6081: 6074: 6061: 5963: 5949:National colors 5944:Political color 5924:Color symbolism 5910: 5840:Color constancy 5818:Color blindness 5792: 5749:Spectral colors 5706: 5700: 5670: 5665: 5648: 5639: 5573:CI list of dyes 5550: 5544: 5500:Imaginary color 5448: 5338: 5284:rg chromaticity 5260: 5207: 5174: 5156: 5151: 5104: 5099: 5086: 5084: 5080: 5069: 5065: 5064: 5060: 5047: 5045: 5037: 5033: 5032: 5028: 5018: 5005: 5004: 5000: 4992: 4988: 4987: 4983: 4978: 4974: 4968: 4948: 4947: 4943: 4935: 4933: 4922: 4921: 4917: 4909: 4907: 4899: 4893: 4892: 4888: 4880: 4876:Danny Pascale. 4875: 4874: 4870: 4860: 4859: 4855: 4848: 4844: 4840: 4831: 4827: 4819: 4813: 4808: 4802: 4800: 4796: 4785: 4780: 4779: 4775: 4762: 4761: 4757: 4735: 4734: 4730: 4721:on 2017-08-21. 4715: 4700: 4699: 4695: 4681: 4680: 4676: 4666: 4665: 4661: 4655:Planckian locus 4644: 4637: 4628: 4626: 4613: 4612: 4608: 4597: 4595: 4591: 4584: 4535: 4498: 4494: 4490: 4464: 4425: 4402: 4379: 4353: 4349: 4345: 4334: 4323: 4312: 4273: 4272: 4268: 4261: 4257: 4253: 4248: 4244: 4222: 4221: 4217: 4204:(8): 999–1002. 4195: 4194: 4190: 4180: 4179: 4175: 4153: 4152: 4148: 4124: 4123: 4119: 4095: 4094: 4085: 4055: 4054: 4027: 4026: 4022: 4000: 3999: 3995: 3977: 3976: 3972: 3961: 3946: 3945: 3938: 3906: 3905: 3901: 3884: 3883: 3879: 3870:on 2008-04-16. 3864: 3849: 3848: 3844: 3837: 3820: 3819: 3804: 3800: 3794: 3792: 3791: 3786: 3775: 3215:noon daylight: 3161:horizon light, 3131: 3061: 3053: 3045: 3037: 2983: 2947: 2941: 2925: 2918: 2912: 2903: 2897: 2888: 2882: 2836: 2825: 2805: 2796:Planckian locus 2788: 2771: 2730: 2729: 2724: 2715: 2709: 2708: 2694: 2685: 2679: 2678: 2673: 2664: 2652: 2651: 2635: 2634: 2624: 2618: 2617: 2607: 2595: 2594: 2572: 2571: 2566: 2557: 2551: 2550: 2536: 2527: 2521: 2520: 2515: 2506: 2494: 2493: 2484: 2483:(normalized to 2464: 2463: 2453: 2447: 2446: 2436: 2424: 2423: 2407: 2399: 2393: 2389: 2383: 2349: 2327: 2305: 2300: 2299: 2275: 2259: 2239: 2238: 2202: 2186: 2161: 2156: 2155: 2119: 2103: 2075: 2070: 2069: 2035: 2025: 2003: 1993: 1971: 1949: 1944: 1943: 1938: 1934: 1930: 1926: 1922: 1915: 1875: 1854: 1853: 1827: 1820: 1819: 1817: 1813: 1809: 1805: 1796: 1792: 1788: 1784: 1748: 1708: 1703: 1702: 1684: 1683: 1650: 1638: 1628: 1608: 1598: 1575: 1561: 1560: 1524: 1512: 1502: 1482: 1472: 1449: 1431: 1417: 1412: 1411: 1384: 1371: 1363: 1362: 1324: 1319: 1318: 1311: 1275: 1270: 1269: 1260: 1257: 1228: 1224: 1216: 1212: 1208: 1204: 1169: 1168: 1153:Planckian locus 1143: 1135: 1131: 1119: 1115: 1111: 1069: 1059: 1037: 1027: 1005: 983: 978: 977: 972: 968: 964: 929: 906: 905: 883:Günter Wyszecki 831: 822: 771: 768: 753: 736: 720: 716: 712: 676: 665: 658: 649: 629: 618: 611: 602: 576: 575: 550: 545: 544: 539: 457: 438: 433: 432: 426:Planckian locus 423: 380: 375: 374: 353: 325: 320: 319: 279: 269: 263: 256: 242: 232: 231: 195: 190: 189: 170: 164: 153: 132: 129: 125:recommendation. 102: 100:CIE illuminants 77: 73: 58: 52: 49: 42: 28: 17: 12: 11: 5: 6755: 6753: 6745: 6744: 6739: 6734: 6724: 6723: 6717: 6716: 6714: 6713: 6703: 6692: 6689: 6688: 6686: 6685: 6680: 6675: 6669: 6667: 6661: 6660: 6657: 6656: 6654: 6653: 6648: 6643: 6638: 6633: 6628: 6623: 6618: 6613: 6608: 6603: 6598: 6593: 6588: 6582: 6580: 6574: 6573: 6571: 6570: 6565: 6560: 6555: 6554: 6553: 6543: 6538: 6533: 6528: 6523: 6518: 6513: 6507: 6505: 6496: 6492: 6491: 6489: 6488: 6483: 6478: 6472: 6467: 6462: 6457: 6451: 6449: 6443: 6442: 6439: 6438: 6436: 6435: 6430: 6425: 6424: 6423: 6418: 6413: 6408: 6403: 6393: 6392: 6391: 6381: 6380: 6379: 6368: 6366: 6362: 6361: 6359: 6358: 6357: 6356: 6351: 6346: 6341: 6335:Color history 6333: 6332: 6331: 6320: 6318: 6312: 6311: 6309: 6308: 6303: 6298: 6293: 6288: 6283: 6278: 6273: 6268: 6263: 6258: 6252: 6250: 6241: 6235: 6234: 6231: 6230: 6228: 6227: 6219: 6218:(Schopenhauer) 6211: 6206: 6203:Color analysis 6200: 6198:Color triangle 6195: 6190: 6185: 6180: 6179: 6178: 6173: 6162: 6160: 6154: 6153: 6151: 6150: 6145: 6140: 6135: 6134: 6133: 6128: 6123: 6118: 6113: 6112: 6111: 6095: 6093: 6084: 6076: 6075: 6068: 6066: 6063: 6062: 6060: 6059: 6054: 6049: 6048: 6047: 6046: 6045: 6035: 6034: 6033: 6018: 6017: 6016: 6011: 6004:Color printing 6001: 5996: 5991: 5990: 5989: 5984: 5973: 5971: 5965: 5964: 5962: 5961: 5956: 5951: 5946: 5941: 5939:Kruithof curve 5936: 5931: 5926: 5920: 5918: 5912: 5911: 5909: 5908: 5901: 5896: 5895: 5894: 5889: 5879: 5874: 5869: 5864: 5859: 5854: 5853: 5852: 5842: 5837: 5832: 5831: 5830: 5825: 5815: 5814: 5813: 5811:Sonochromatism 5802: 5800: 5794: 5793: 5791: 5790: 5785: 5780: 5779: 5778: 5768: 5767: 5766: 5761: 5751: 5746: 5745: 5744: 5739: 5734: 5723: 5721: 5714: 5708: 5707: 5701: 5699: 5698: 5691: 5684: 5676: 5667: 5666: 5653: 5650: 5649: 5647: 5646: 5634: 5633: 5632: 5622: 5617: 5612: 5607: 5602: 5597: 5592: 5587: 5582: 5577: 5576: 5575: 5565: 5560: 5554: 5552: 5546: 5545: 5543: 5542: 5537: 5532: 5527: 5522: 5517: 5512: 5507: 5502: 5497: 5492: 5487: 5482: 5477: 5472: 5467: 5462: 5456: 5454: 5450: 5449: 5447: 5446: 5441: 5436: 5435: 5434: 5424: 5423: 5422: 5412: 5411: 5410: 5405: 5400: 5395: 5385: 5384: 5383: 5373: 5372: 5371: 5361: 5360: 5359: 5348: 5346: 5340: 5339: 5337: 5336: 5331: 5326: 5321: 5319:SMPTE 240M/"C" 5316: 5311: 5306: 5301: 5296: 5291: 5286: 5281: 5276: 5270: 5268: 5262: 5261: 5259: 5258: 5253: 5248: 5243: 5238: 5233: 5228: 5223: 5217: 5215: 5209: 5208: 5206: 5205: 5200: 5195: 5190: 5184: 5182: 5176: 5175: 5173: 5172: 5167: 5161: 5158: 5157: 5152: 5150: 5149: 5142: 5135: 5127: 5121: 5120: 5114: 5103: 5102:External links 5100: 5098: 5097: 5058: 5026: 5016: 4998: 4981: 4972: 4966: 4941: 4915: 4886: 4883:. Babel Color. 4868: 4865:. vendian.org. 4853: 4825: 4794: 4773: 4755: 4744:(4): 243–251. 4728: 4713: 4693: 4674: 4659: 4635: 4606: 4604: 4603: 4582: 4533: 4507:(6): 971–977. 4501:Applied Optics 4488: 4486: 4485: 4475:(4): 437–450. 4462: 4423: 4413:(3): 391–398. 4400: 4390:(3): 319–323. 4377: 4364:(4): 456–464. 4343: 4332: 4321: 4310: 4286:(4): 250–259. 4266: 4242: 4231:(5): 583–617. 4215: 4188: 4173: 4146: 4135:(8): 968–974. 4117: 4083: 4064:(8): 947–952. 4036:(3): 125–131. 4020: 4009:(7): 937–944. 3993: 3970: 3967:on 2008-02-13. 3959: 3936: 3915:(4): 243–251. 3899: 3891:. S012/E:2004. 3877: 3862: 3842: 3835: 3801: 3799: 3796: 3790: 3789: 3772: 3771: 3768: 3767: 3764: 3761: 3759: 3757: 3754: 3751: 3747: 3746: 3743: 3740: 3738: 3736: 3733: 3730: 3726: 3725: 3722: 3719: 3717: 3715: 3712: 3709: 3705: 3704: 3701: 3698: 3696: 3694: 3691: 3688: 3684: 3683: 3680: 3677: 3675: 3673: 3670: 3667: 3663: 3662: 3659: 3656: 3654: 3652: 3649: 3646: 3642: 3641: 3638: 3635: 3633: 3631: 3628: 3625: 3621: 3620: 3617: 3614: 3612: 3610: 3607: 3604: 3600: 3599: 3596: 3593: 3591: 3589: 3586: 3583: 3579: 3578: 3575: 3572: 3569: 3566: 3563: 3560: 3556: 3555: 3552: 3549: 3546: 3543: 3540: 3537: 3533: 3532: 3529: 3526: 3523: 3520: 3517: 3514: 3510: 3509: 3506: 3503: 3500: 3497: 3494: 3491: 3487: 3486: 3483: 3480: 3477: 3474: 3471: 3468: 3464: 3463: 3457: 3454: 3451: 3448: 3445: 3442: 3438: 3437: 3434: 3431: 3428: 3425: 3422: 3419: 3415: 3414: 3411: 3408: 3405: 3402: 3399: 3396: 3392: 3391: 3388: 3385: 3382: 3379: 3376: 3373: 3369: 3368: 3365: 3362: 3359: 3356: 3353: 3350: 3346: 3345: 3342: 3339: 3336: 3333: 3330: 3327: 3323: 3322: 3319: 3316: 3313: 3310: 3307: 3304: 3300: 3299: 3296: 3293: 3290: 3287: 3284: 3281: 3277: 3276: 3266: 3263: 3260: 3257: 3254: 3251: 3247: 3246: 3243: 3240: 3237: 3234: 3231: 3228: 3224: 3223: 3213: 3210: 3207: 3204: 3201: 3198: 3192: 3191: 3188: 3185: 3182: 3179: 3176: 3173: 3169: 3168: 3159: 3156: 3153: 3150: 3147: 3144: 3140: 3139: 3128: 3125: 3122: 3119: 3116: 3113: 3109: 3108: 3105: 3102: 3099: 3096: 3093: 3090: 3086: 3085: 3082: 3079: 3076: 3073: 3070: 3067: 3063: 3062: 3059: 3054: 3051: 3046: 3043: 3038: 3035: 3029: 3028: 3025: 3015: 3009: 3006: 2982: 2979: 2943:Main article: 2940: 2937: 2924: 2921: 2920: 2919: 2913: 2906: 2904: 2898: 2891: 2889: 2883: 2876: 2835: 2832: 2823: 2803: 2787: 2784: 2770: 2767: 2728: 2725: 2721: 2718: 2716: 2714: 2711: 2710: 2704: 2698: 2695: 2691: 2688: 2686: 2684: 2681: 2680: 2677: 2674: 2670: 2667: 2665: 2663: 2660: 2659: 2633: 2630: 2627: 2625: 2623: 2620: 2619: 2616: 2613: 2610: 2608: 2606: 2603: 2602: 2570: 2567: 2563: 2560: 2558: 2556: 2553: 2552: 2546: 2540: 2537: 2533: 2530: 2528: 2526: 2523: 2522: 2519: 2516: 2512: 2509: 2507: 2505: 2502: 2501: 2462: 2459: 2456: 2454: 2452: 2449: 2448: 2445: 2442: 2439: 2437: 2435: 2432: 2431: 2406: 2403: 2397: 2391: 2387: 2367: 2364: 2361: 2356: 2352: 2348: 2345: 2342: 2339: 2334: 2330: 2326: 2323: 2320: 2317: 2312: 2308: 2296: 2295: 2282: 2278: 2274: 2271: 2266: 2262: 2258: 2255: 2252: 2249: 2246: 2236: 2225: 2222: 2218: 2214: 2209: 2205: 2201: 2198: 2193: 2189: 2185: 2182: 2179: 2176: 2173: 2168: 2164: 2153: 2142: 2139: 2135: 2131: 2126: 2122: 2118: 2115: 2110: 2106: 2102: 2099: 2096: 2093: 2090: 2087: 2082: 2078: 2067: 2056: 2053: 2050: 2047: 2042: 2038: 2032: 2028: 2024: 2021: 2018: 2015: 2010: 2006: 2000: 1996: 1992: 1989: 1986: 1983: 1978: 1974: 1970: 1967: 1964: 1961: 1956: 1952: 1936: 1932: 1928: 1924: 1920: 1913: 1893: 1890: 1885: 1881: 1878: 1872: 1861: 1852:; for example 1839: 1834: 1830: 1815: 1811: 1807: 1803: 1794: 1790: 1786: 1782: 1775: 1774: 1763: 1760: 1755: 1751: 1747: 1744: 1739: 1734: 1730: 1726: 1723: 1720: 1715: 1711: 1700: 1687: 1681: 1674: 1671: 1668: 1665: 1661: 1654: 1651: 1645: 1641: 1635: 1631: 1625: 1622: 1615: 1611: 1605: 1601: 1595: 1592: 1587: 1582: 1578: 1572: 1569: 1566: 1563: 1562: 1558: 1548: 1545: 1542: 1539: 1535: 1528: 1525: 1519: 1515: 1509: 1505: 1499: 1496: 1489: 1485: 1479: 1475: 1469: 1466: 1461: 1456: 1452: 1446: 1443: 1440: 1437: 1436: 1434: 1429: 1424: 1420: 1396: 1391: 1387: 1383: 1378: 1374: 1370: 1342: 1339: 1336: 1331: 1327: 1310: 1307: 1293: 1290: 1285: 1282: 1278: 1255: 1188: 1185: 1182: 1179: 1176: 1141: 1133: 1129: 1117: 1113: 1109: 1102: 1101: 1090: 1087: 1084: 1081: 1076: 1072: 1066: 1062: 1058: 1055: 1052: 1049: 1044: 1040: 1034: 1030: 1026: 1023: 1020: 1017: 1012: 1008: 1004: 1001: 998: 995: 990: 986: 970: 966: 962: 956: 955: 944: 941: 936: 932: 928: 925: 922: 919: 916: 913: 844:daylight locus 821: 818: 794:copper sulfate 766: 752: 749: 709: 708: 697: 691: 688: 682: 679: 672: 668: 664: 661: 655: 652: 647: 644: 638: 635: 632: 625: 621: 617: 614: 608: 605: 597: 592: 587: 584: 579: 574: 571: 568: 565: 562: 557: 553: 537: 534: 533: 522: 511: 508: 505: 502: 491: 488: 483: 480: 475: 470: 467: 464: 460: 456: 451: 448: 445: 441: 421: 409: 405: 401: 398: 395: 392: 387: 383: 360: 356: 352: 349: 346: 343: 340: 337: 332: 328: 316: 315: 304: 298: 295: 291: 285: 282: 276: 272: 266: 262: 259: 252: 249: 245: 239: 235: 228: 225: 222: 219: 216: 213: 208: 205: 202: 198: 162: 152: 149: 127: 101: 98: 60: 59: 31: 29: 22: 15: 13: 10: 9: 6: 4: 3: 2: 6754: 6743: 6740: 6738: 6735: 6733: 6730: 6729: 6727: 6712: 6704: 6702: 6694: 6693: 6690: 6684: 6681: 6679: 6676: 6674: 6671: 6670: 6668: 6666: 6662: 6652: 6649: 6647: 6644: 6642: 6639: 6637: 6634: 6632: 6629: 6627: 6624: 6622: 6619: 6617: 6614: 6612: 6609: 6607: 6604: 6602: 6599: 6597: 6594: 6592: 6589: 6587: 6584: 6583: 6581: 6579: 6575: 6569: 6566: 6564: 6561: 6559: 6556: 6552: 6549: 6548: 6547: 6544: 6542: 6539: 6537: 6534: 6532: 6529: 6527: 6524: 6522: 6519: 6517: 6514: 6512: 6509: 6508: 6506: 6504: 6500: 6497: 6493: 6487: 6484: 6482: 6479: 6476: 6473: 6471: 6468: 6466: 6463: 6461: 6458: 6456: 6453: 6452: 6450: 6448:organizations 6444: 6434: 6431: 6429: 6426: 6422: 6419: 6417: 6414: 6412: 6409: 6407: 6404: 6402: 6399: 6398: 6397: 6394: 6390: 6389:Pastel colors 6387: 6386: 6385: 6382: 6378: 6375: 6374: 6373: 6370: 6369: 6367: 6363: 6355: 6352: 6350: 6347: 6345: 6342: 6340: 6337: 6336: 6334: 6330: 6327: 6326: 6325: 6322: 6321: 6319: 6317: 6313: 6307: 6304: 6302: 6299: 6297: 6294: 6292: 6289: 6287: 6284: 6282: 6279: 6277: 6274: 6272: 6269: 6267: 6264: 6262: 6259: 6257: 6254: 6253: 6251: 6249: 6245: 6242: 6240: 6236: 6225: 6224: 6220: 6217: 6216: 6212: 6210: 6207: 6204: 6201: 6199: 6196: 6194: 6191: 6189: 6186: 6184: 6181: 6177: 6174: 6172: 6171:Primary color 6169: 6168: 6167: 6164: 6163: 6161: 6159: 6155: 6149: 6146: 6144: 6141: 6139: 6138:Light-on-dark 6136: 6132: 6129: 6127: 6124: 6122: 6119: 6117: 6114: 6110: 6107: 6106: 6105: 6102: 6101: 6100: 6097: 6096: 6094: 6092: 6088: 6085: 6083: 6077: 6072: 6058: 6057:Color mapping 6055: 6053: 6050: 6044: 6041: 6040: 6039: 6036: 6032: 6029: 6028: 6027: 6024: 6023: 6022: 6019: 6015: 6012: 6010: 6007: 6006: 6005: 6002: 6000: 5997: 5995: 5992: 5988: 5985: 5983: 5982:Color balance 5980: 5979: 5978: 5975: 5974: 5972: 5970: 5966: 5960: 5959:Chromotherapy 5957: 5955: 5952: 5950: 5947: 5945: 5942: 5940: 5937: 5935: 5932: 5930: 5927: 5925: 5922: 5921: 5919: 5917: 5913: 5907: 5906: 5902: 5900: 5899:Tetrachromacy 5897: 5893: 5890: 5888: 5885: 5884: 5883: 5880: 5878: 5875: 5873: 5870: 5868: 5865: 5863: 5860: 5858: 5855: 5851: 5848: 5847: 5846: 5843: 5841: 5838: 5836: 5833: 5829: 5826: 5824: 5823:Achromatopsia 5821: 5820: 5819: 5816: 5812: 5809: 5808: 5807: 5806:Chromesthesia 5804: 5803: 5801: 5799: 5795: 5789: 5786: 5784: 5781: 5777: 5774: 5773: 5772: 5769: 5765: 5762: 5760: 5757: 5756: 5755: 5752: 5750: 5747: 5743: 5740: 5738: 5735: 5733: 5730: 5729: 5728: 5725: 5724: 5722: 5720:Color physics 5718: 5715: 5713: 5712:Color science 5709: 5704: 5697: 5692: 5690: 5685: 5683: 5678: 5677: 5674: 5663: 5651: 5643: 5638: 5635: 5631: 5628: 5627: 5626: 5623: 5621: 5618: 5616: 5613: 5611: 5608: 5606: 5603: 5601: 5598: 5596: 5593: 5591: 5588: 5586: 5583: 5581: 5578: 5574: 5571: 5570: 5569: 5566: 5564: 5561: 5559: 5556: 5555: 5553: 5551:and standards 5549:Color systems 5547: 5541: 5538: 5536: 5533: 5531: 5528: 5526: 5523: 5521: 5518: 5516: 5513: 5511: 5508: 5506: 5503: 5501: 5498: 5496: 5493: 5491: 5488: 5486: 5483: 5481: 5478: 5476: 5473: 5471: 5468: 5466: 5463: 5461: 5458: 5457: 5455: 5451: 5445: 5442: 5440: 5437: 5433: 5430: 5429: 5428: 5425: 5421: 5418: 5417: 5416: 5413: 5409: 5406: 5404: 5401: 5399: 5396: 5394: 5391: 5390: 5389: 5386: 5382: 5379: 5378: 5377: 5374: 5370: 5367: 5366: 5365: 5362: 5358: 5355: 5354: 5353: 5350: 5349: 5347: 5345: 5341: 5335: 5332: 5330: 5327: 5325: 5322: 5320: 5317: 5315: 5312: 5310: 5307: 5305: 5302: 5300: 5297: 5295: 5292: 5290: 5287: 5285: 5282: 5280: 5277: 5275: 5272: 5271: 5269: 5267: 5263: 5257: 5254: 5252: 5249: 5247: 5246:CIELUV (1976) 5244: 5242: 5241:CIELAB (1976) 5239: 5237: 5234: 5232: 5229: 5227: 5224: 5222: 5219: 5218: 5216: 5214: 5210: 5204: 5201: 5199: 5196: 5194: 5191: 5189: 5186: 5185: 5183: 5181: 5177: 5171: 5168: 5166: 5163: 5162: 5159: 5155: 5148: 5143: 5141: 5136: 5134: 5129: 5128: 5125: 5119: 5115: 5113: 5109: 5106: 5105: 5101: 5094: 5079: 5075: 5068: 5062: 5059: 5055: 5043: 5036: 5030: 5027: 5023: 5019: 5017:9781558607927 5013: 5009: 5002: 4999: 4991: 4985: 4982: 4976: 4973: 4969: 4963: 4959: 4955: 4951: 4945: 4942: 4932:on 2011-07-25 4931: 4927: 4926: 4919: 4916: 4906:on 2005-05-23 4905: 4898: 4897: 4890: 4887: 4879: 4872: 4869: 4864: 4857: 4854: 4838: 4834: 4829: 4826: 4816: 4805: 4798: 4795: 4791: 4784: 4777: 4774: 4769: 4765: 4759: 4756: 4751: 4747: 4743: 4739: 4732: 4729: 4725: 4720: 4716: 4710: 4706: 4705: 4697: 4694: 4689: 4685: 4678: 4675: 4670: 4663: 4660: 4656: 4652: 4648: 4642: 4640: 4636: 4625:on 2017-12-04 4624: 4620: 4619:www.cie.co.at 4616: 4610: 4607: 4590: 4589: 4583: 4579: 4575: 4571: 4567: 4562: 4561:10.1.1.384.70 4557: 4553: 4549: 4545: 4541: 4540: 4534: 4530: 4526: 4522: 4518: 4514: 4510: 4506: 4502: 4497: 4496: 4492: 4489: 4482: 4478: 4474: 4470: 4469: 4463: 4459: 4455: 4451: 4447: 4443: 4439: 4435: 4431: 4430: 4424: 4420: 4416: 4412: 4408: 4407: 4401: 4397: 4393: 4389: 4385: 4384: 4378: 4375: 4371: 4367: 4363: 4359: 4358: 4352: 4351: 4347: 4344: 4340: 4338: 4331: 4327: 4320: 4316: 4309: 4303: 4299: 4294: 4293:10.1.1.42.521 4289: 4285: 4281: 4277: 4270: 4267: 4251: 4246: 4243: 4238: 4234: 4230: 4226: 4219: 4216: 4211: 4207: 4203: 4199: 4192: 4189: 4184: 4177: 4174: 4169: 4165: 4161: 4157: 4150: 4147: 4142: 4138: 4134: 4130: 4129: 4121: 4118: 4113: 4109: 4105: 4101: 4100: 4092: 4090: 4088: 4084: 4079: 4075: 4071: 4067: 4063: 4059: 4051: 4047: 4043: 4039: 4035: 4031: 4024: 4021: 4016: 4012: 4008: 4004: 3997: 3994: 3989: 3985: 3981: 3974: 3971: 3966: 3962: 3956: 3952: 3951: 3943: 3941: 3937: 3931: 3926: 3922: 3918: 3914: 3910: 3903: 3900: 3896: 3890: 3889: 3881: 3878: 3874: 3869: 3865: 3859: 3855: 3854: 3846: 3843: 3838: 3832: 3828: 3824: 3817: 3815: 3813: 3811: 3809: 3807: 3803: 3797: 3795: 3784: 3782: 3780: 3778: 3774: 3765: 3762: 3760: 3758: 3755: 3752: 3749: 3748: 3744: 3741: 3739: 3737: 3734: 3731: 3728: 3727: 3723: 3720: 3718: 3716: 3713: 3710: 3707: 3706: 3702: 3699: 3697: 3695: 3692: 3689: 3686: 3685: 3681: 3678: 3676: 3674: 3671: 3668: 3665: 3664: 3660: 3657: 3655: 3653: 3650: 3647: 3644: 3643: 3639: 3636: 3634: 3632: 3629: 3626: 3623: 3622: 3618: 3615: 3613: 3611: 3608: 3605: 3602: 3601: 3597: 3594: 3592: 3590: 3587: 3584: 3581: 3580: 3576: 3573: 3570: 3567: 3564: 3561: 3558: 3557: 3553: 3550: 3547: 3544: 3541: 3538: 3535: 3534: 3530: 3527: 3524: 3521: 3518: 3515: 3512: 3511: 3507: 3504: 3501: 3498: 3495: 3492: 3489: 3488: 3484: 3481: 3478: 3475: 3472: 3469: 3466: 3465: 3461: 3458: 3455: 3452: 3449: 3446: 3443: 3440: 3439: 3435: 3432: 3429: 3426: 3423: 3420: 3417: 3416: 3412: 3409: 3406: 3403: 3400: 3397: 3394: 3393: 3389: 3386: 3383: 3380: 3377: 3374: 3371: 3370: 3366: 3363: 3360: 3357: 3354: 3351: 3348: 3347: 3343: 3340: 3337: 3334: 3331: 3328: 3325: 3324: 3320: 3317: 3314: 3311: 3308: 3305: 3302: 3301: 3298:equal energy 3297: 3294: 3291: 3288: 3285: 3282: 3279: 3278: 3275: 3271: 3267: 3264: 3261: 3258: 3255: 3252: 3249: 3248: 3244: 3238: 3235: 3232: 3229: 3226: 3225: 3222: 3218: 3214: 3208: 3205: 3202: 3199: 3197: 3194: 3193: 3189: 3183: 3180: 3177: 3174: 3171: 3170: 3167: 3164: 3160: 3154: 3151: 3148: 3145: 3142: 3141: 3138: 3134: 3129: 3126: 3123: 3120: 3117: 3114: 3111: 3110: 3106: 3103: 3100: 3097: 3094: 3091: 3088: 3087: 3083: 3080: 3077: 3074: 3071: 3068: 3065: 3064: 3058: 3050: 3042: 3034: 3030: 3023: 3019: 3013: 3003: 2997: 2995: 2991: 2989: 2980: 2978: 2974: 2972: 2966: 2964: 2960: 2956: 2952: 2946: 2938: 2936: 2932: 2930: 2922: 2916: 2910: 2905: 2901: 2895: 2890: 2886: 2880: 2875: 2873: 2870: 2868: 2864: 2860: 2856: 2852: 2847: 2845: 2841: 2833: 2831: 2829: 2820: 2817: 2813: 2801: 2797: 2792: 2785: 2783: 2781: 2777: 2768: 2766: 2764: 2760: 2756: 2752: 2748: 2743: 2726: 2719: 2717: 2712: 2702: 2696: 2689: 2687: 2682: 2675: 2668: 2666: 2661: 2649: 2631: 2628: 2626: 2621: 2614: 2611: 2609: 2604: 2592: 2590: 2585: 2568: 2561: 2559: 2554: 2544: 2538: 2531: 2529: 2524: 2517: 2510: 2508: 2503: 2491: 2487: 2482: 2477: 2460: 2457: 2455: 2450: 2443: 2440: 2438: 2433: 2421: 2419: 2416: 2412: 2404: 2402: 2401: 2381: 2362: 2354: 2350: 2346: 2340: 2332: 2328: 2324: 2318: 2310: 2306: 2280: 2276: 2272: 2269: 2264: 2260: 2256: 2253: 2250: 2247: 2244: 2237: 2223: 2220: 2216: 2207: 2203: 2199: 2196: 2191: 2187: 2183: 2180: 2177: 2171: 2166: 2162: 2154: 2140: 2137: 2133: 2124: 2120: 2116: 2113: 2108: 2104: 2100: 2097: 2094: 2091: 2085: 2080: 2076: 2068: 2054: 2048: 2040: 2036: 2030: 2026: 2022: 2016: 2008: 2004: 1998: 1994: 1990: 1984: 1976: 1972: 1968: 1962: 1954: 1950: 1942: 1941: 1940: 1917: 1891: 1888: 1883: 1879: 1876: 1870: 1859: 1837: 1832: 1828: 1800: 1780: 1761: 1758: 1753: 1749: 1745: 1742: 1737: 1732: 1728: 1724: 1721: 1718: 1713: 1709: 1701: 1672: 1669: 1666: 1663: 1652: 1643: 1639: 1633: 1629: 1623: 1620: 1613: 1609: 1603: 1599: 1593: 1590: 1585: 1580: 1576: 1570: 1567: 1564: 1546: 1543: 1540: 1537: 1526: 1517: 1513: 1507: 1503: 1497: 1494: 1487: 1483: 1477: 1473: 1467: 1464: 1459: 1454: 1450: 1444: 1441: 1438: 1432: 1427: 1422: 1418: 1410: 1409: 1408: 1389: 1385: 1381: 1376: 1372: 1360: 1356: 1337: 1329: 1325: 1316: 1313:The relative 1308: 1291: 1288: 1283: 1280: 1265: 1254: 1249: 1246: 1245: 1241: 1236: 1234: 1222: 1202: 1183: 1180: 1177: 1162: 1158: 1154: 1149: 1145: 1139: 1127: 1106: 1088: 1082: 1074: 1070: 1064: 1060: 1056: 1050: 1042: 1038: 1032: 1028: 1024: 1018: 1010: 1006: 1002: 996: 988: 984: 976: 975: 974: 960: 942: 939: 934: 930: 926: 923: 920: 917: 914: 911: 904: 903: 902: 900: 896: 894: 890: 884: 880: 879:David MacAdam 876: 875:Deane B. 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Index


sds.py
talk page

spectral power distributions
visible light
spectral power distribution
International Commission on Illumination
metamerism index
Metamerism
color rendering index
CIE Standard Illuminants for Colorimetry
spectral radiant exitance
black body
Planck's law
Planckian locus
correlated color temperature
Raymond Davis, Jr.
incandescent lamp
color gel
copper sulfate
mannite
pyridine
sulfuric acid
cobalt
ammonium sulfate

daylight locus
National Research Council of Canada
Ottawa

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