Abstract

The relative uv content of irradiation influences the color of fluorescent samples. A method is developed for testing light sources and natural daylight with visual and instrumental assessment using a set of white metameric pairs. Properties of the samples and applications of the method are shown.

© 1979 Optical Society of America

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References

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  1. E. Ganz, Appl. Opt. 16, 806 (1977).
    [PubMed]
  2. D. H. Alman, F. Grum, ISCC Technical Report 78-1 (1978).
  3. E. Ganz, Appl. Opt. 15, 2039 (1976).
    [CrossRef] [PubMed]
  4. D. H. Alman, F. W. Billmeyer, Color Res. Appl. 1, 141 (1976).
  5. D. Eitle, E. Ganz, Textilveredlung 3, 389 (1968).
  6. G. Wyszecki, Farbe 19, 43 (1970).
  7. E. Ganz, D. Eitle, Farbe 19, 103 (1970).

1977 (1)

1976 (2)

E. Ganz, Appl. Opt. 15, 2039 (1976).
[CrossRef] [PubMed]

D. H. Alman, F. W. Billmeyer, Color Res. Appl. 1, 141 (1976).

1970 (2)

G. Wyszecki, Farbe 19, 43 (1970).

E. Ganz, D. Eitle, Farbe 19, 103 (1970).

1968 (1)

D. Eitle, E. Ganz, Textilveredlung 3, 389 (1968).

Alman, D. H.

D. H. Alman, F. W. Billmeyer, Color Res. Appl. 1, 141 (1976).

D. H. Alman, F. Grum, ISCC Technical Report 78-1 (1978).

Billmeyer, F. W.

D. H. Alman, F. W. Billmeyer, Color Res. Appl. 1, 141 (1976).

Eitle, D.

E. Ganz, D. Eitle, Farbe 19, 103 (1970).

D. Eitle, E. Ganz, Textilveredlung 3, 389 (1968).

Ganz, E.

E. Ganz, Appl. Opt. 16, 806 (1977).
[PubMed]

E. Ganz, Appl. Opt. 15, 2039 (1976).
[CrossRef] [PubMed]

E. Ganz, D. Eitle, Farbe 19, 103 (1970).

D. Eitle, E. Ganz, Textilveredlung 3, 389 (1968).

Grum, F.

D. H. Alman, F. Grum, ISCC Technical Report 78-1 (1978).

Wyszecki, G.

G. Wyszecki, Farbe 19, 43 (1970).

Appl. Opt. (2)

Color Res. Appl. (1)

D. H. Alman, F. W. Billmeyer, Color Res. Appl. 1, 141 (1976).

Farbe (2)

G. Wyszecki, Farbe 19, 43 (1970).

E. Ganz, D. Eitle, Farbe 19, 103 (1970).

Textilveredlung (1)

D. Eitle, E. Ganz, Textilveredlung 3, 389 (1968).

Other (1)

D. H. Alman, F. Grum, ISCC Technical Report 78-1 (1978).

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Figures (3)

Fig. 1
Fig. 1

Top: Construction of metameric samples, S is the substrate, B is the nonfluorescent reference sample, Y is the yellow-grayish substrate used for fluorescent samples F5 to F1, and chromaticities are shown for illuminant D65 in the CIE 1976 (L*a*b*) color space. Bottom: chromaticity shift of fluorescent samples F5 to F1 in illuminants D55 and D75, respectively.

Fig. 2
Fig. 2

Spectral radiance factors of the blue sample B (dashed line) and of the fluorescent sample F3 (solid line), computed for illuminants A, D55, D65, D75, and Xe(2), respectively (from bottom to top). Sample B is an approximate metameric match with sample F3 in illuminant D65 (heavy line).

Fig. 3
Fig. 3

Chromaticities in the CIE 1976 (L*a*b*) color space, computed with the values given in Tables II, III, and IV for the CIE 1964 supplementary standard calorimetric observer.

Tables (8)

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Table I Colorimetric Values (CIE 1964 Supplementary Standard Colorimetric Observer) of a Representative Set of Metameric White Samples

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Table II Spectral Reflectance Factors

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Table III Spectral Coefficients of Quantum Absorption (Spectral External Radiant Efficiency)

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Table IV Spectral Coefficients of Radiant Fluorescent Emission

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Table V Estimation of the Relative Ultraviolet Content of Different Phases of Daylight

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Table VI Estimation of the Relative Ultraviolet Content of Various Artificial Light Sources

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Table VII Influence of the Addition of Ultraviolet Tubes to Artificial Daylight; Sources 65 cm Above Samples

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Table VIII Assessment of the Relative Ultraviolet Content in the Sample Irradiation of Various Photometers

Equations (1)

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A D 55 D 65 D 75 Xe ( 2 ) F 1 F 2 F 3 F 4 F 5 .

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