Abstract

When two lights of different wavelengths are dichoptically presented to the eyes to form a single visual field, the fusion of colors cannot be assured unless the difference is relatively small. The limit of the wavelength difference Δλ beyond which no homogeneous color is obtained was determined for the wavelengths covering a range of about 500 to 660 am. It varied from about 10 to 50 nm depending upon the wavelength region investigated, which is much larger than the Δλ values normally obtained in wavelength discrimination experiments. The limit was also obtained for a pair made up of a white light and a colored light that varied in purity. The value was again quite large. These results suggested that the tolerance for color difference is fairly lenient as far as binocular color fusion is concerned.

© 1979 Optical Society of America

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1976

Ch. M. M. de Weert and W. J. M. Levelt, "Comparison of normal dichoptic color mixing," Vis. Res. 16, 59–70 (1976).

1965

1964

1962

1961

F. H. Thomas, F. L. Dimmick, and S. M. Luria, "A study of binocular color mixture," Vis. Res. 1, 108–120 (1961).

1960

K. J. McCree, "Colour confusion produced by voluntary fixation," Optica Acta 1, 281–290 (1960).

1958

1951

L. M. Hurvich and D. Jameson, "The binocular fusion of yellow in relation to color theories," Science 114, 199–202 (1951).

1947

R. W. Pickford, "Binocular color combinations," Nature 159, 268–269 (1947).

1945

E. N. Willmer and W. D. Wright, "Colour sensitivity of the fovea centralis," Nature 156, 119 (1945).

1937

1934

W. D. Wright and F. H. G. Pitt, "Hue-discrimination in normal colour-vision," Proc. Phys. Soc. (Lond.) 46, 459–473 (1934).

1930

D. E. Johannsen, "A quantitative study of binocular color vision," J. Gen. Psychol. 4, 282–308 (1930).

Bedford, R. E.

Boynton, R. M.

R. M. Boynton and J. Gordon, "Bezold-Brücke hue shift measured by color naming technique," J. Opt. Soc. Am. 55, 78–86 (1965).

R. M. Boynton, "Color, hue, and wavelength," in Handbook of Perception Vol. V, edited by E. C. Carterette and M. P. Friedman (Academic, New York, 1975)

de Weert, Ch. M. M.

Ch. M. M. de Weert and W. J. M. Levelt, "Comparison of normal dichoptic color mixing," Vis. Res. 16, 59–70 (1976).

Dimmick, F. L.

F. H. Thomas, F. L. Dimmick, and S. M. Luria, "A study of binocular color mixture," Vis. Res. 1, 108–120 (1961).

Gordon, J.

Hoffman, C. S.

Hurvich, L. M.

L. M. Hurvich and D. Jameson, "The binocular fusion of yellow in relation to color theories," Science 114, 199–202 (1951).

Jameson, D.

L. M. Hurvich and D. Jameson, "The binocular fusion of yellow in relation to color theories," Science 114, 199–202 (1951).

Johannsen, D. E.

D. E. Johannsen, "A quantitative study of binocular color vision," J. Gen. Psychol. 4, 282–308 (1930).

Levelt, W. J. M.

Ch. M. M. de Weert and W. J. M. Levelt, "Comparison of normal dichoptic color mixing," Vis. Res. 16, 59–70 (1976).

Luria, S. M.

F. H. Thomas, F. L. Dimmick, and S. M. Luria, "A study of binocular color mixture," Vis. Res. 1, 108–120 (1961).

MacAdam, D. L.

McCree, K. J.

K. J. McCree, "Colour confusion produced by voluntary fixation," Optica Acta 1, 281–290 (1960).

Pickford, R. W.

R. W. Pickford, "Binocular color combinations," Nature 159, 268–269 (1947).

Pitt, F. H. G.

W. D. Wright and F. H. G. Pitt, "Hue-discrimination in normal colour-vision," Proc. Phys. Soc. (Lond.) 46, 459–473 (1934).

Siegel, M. H.

Thomas, F. H.

F. H. Thomas, F. L. Dimmick, and S. M. Luria, "A study of binocular color mixture," Vis. Res. 1, 108–120 (1961).

Willmer, E. N.

E. N. Willmer and W. D. Wright, "Colour sensitivity of the fovea centralis," Nature 156, 119 (1945).

Wright, W. D.

E. N. Willmer and W. D. Wright, "Colour sensitivity of the fovea centralis," Nature 156, 119 (1945).

W. D. Wright and F. H. G. Pitt, "Hue-discrimination in normal colour-vision," Proc. Phys. Soc. (Lond.) 46, 459–473 (1934).

W. D. Wright, Researches on normal and defective colour vision, (H. Kimpton, London, 1946).

Wyszecki, G. W.

J. Gen. Psychol.

D. E. Johannsen, "A quantitative study of binocular color vision," J. Gen. Psychol. 4, 282–308 (1930).

J. Opt. Soc. Am.

Nature

E. N. Willmer and W. D. Wright, "Colour sensitivity of the fovea centralis," Nature 156, 119 (1945).

R. W. Pickford, "Binocular color combinations," Nature 159, 268–269 (1947).

Optica Acta

K. J. McCree, "Colour confusion produced by voluntary fixation," Optica Acta 1, 281–290 (1960).

Proc. Phys. Soc.

W. D. Wright and F. H. G. Pitt, "Hue-discrimination in normal colour-vision," Proc. Phys. Soc. (Lond.) 46, 459–473 (1934).

Science

L. M. Hurvich and D. Jameson, "The binocular fusion of yellow in relation to color theories," Science 114, 199–202 (1951).

Vis. Res.

Ch. M. M. de Weert and W. J. M. Levelt, "Comparison of normal dichoptic color mixing," Vis. Res. 16, 59–70 (1976).

F. H. Thomas, F. L. Dimmick, and S. M. Luria, "A study of binocular color mixture," Vis. Res. 1, 108–120 (1961).

Other

R. M. Boynton, "Color, hue, and wavelength," in Handbook of Perception Vol. V, edited by E. C. Carterette and M. P. Friedman (Academic, New York, 1975)

W. D. Wright, Researches on normal and defective colour vision, (H. Kimpton, London, 1946).

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