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  1. P. L. Walraven, “On the Mechanisms of Color Vision,” thesis, University of Utrecht, 1962.
  2. P. L. Walraven and H. J. Leebeek, Doc. Ophthalmol. 18, 56 (1964).
    [Crossref]
  3. P. L. Walraven, J. Opt. Soc. Am. 51, 1113 (1961).
    [Crossref] [PubMed]
  4. M. A. Bouman and P. L. Walraven, Vision Res. 2, 177 (1962).
    [Crossref]
  5. D. Jameson and L. M. Hurvich, J. Opt. Soc. Am. 43, 552 (1953).
    [Crossref] [PubMed]
  6. G. S. Brindley, J. Phys. 122, 332 (1953).
  7. L. M. Hurvich and D. Jameson, J. Opt. Soc. Am. 45, 602 (1955).
    [Crossref] [PubMed]
  8. P. L. Walraven, Proc. Photobiology Congress Oxford 1964 (to be published).
  9. W. A. H. Rushton, Ann. N. Y. Acad. Sci. 74, 291 (1958).
    [Crossref]
  10. R. G. Speelman and J. Krauskopf, J. Opt. Soc. Am. 53, 1103 (1963).
    [Crossref]

1964 (1)

P. L. Walraven and H. J. Leebeek, Doc. Ophthalmol. 18, 56 (1964).
[Crossref]

1963 (1)

1962 (1)

M. A. Bouman and P. L. Walraven, Vision Res. 2, 177 (1962).
[Crossref]

1961 (1)

1958 (1)

W. A. H. Rushton, Ann. N. Y. Acad. Sci. 74, 291 (1958).
[Crossref]

1955 (1)

1953 (2)

Bouman, M. A.

M. A. Bouman and P. L. Walraven, Vision Res. 2, 177 (1962).
[Crossref]

Brindley, G. S.

G. S. Brindley, J. Phys. 122, 332 (1953).

Hurvich, L. M.

Jameson, D.

Krauskopf, J.

Leebeek, H. J.

P. L. Walraven and H. J. Leebeek, Doc. Ophthalmol. 18, 56 (1964).
[Crossref]

Rushton, W. A. H.

W. A. H. Rushton, Ann. N. Y. Acad. Sci. 74, 291 (1958).
[Crossref]

Speelman, R. G.

Walraven, P. L.

P. L. Walraven and H. J. Leebeek, Doc. Ophthalmol. 18, 56 (1964).
[Crossref]

M. A. Bouman and P. L. Walraven, Vision Res. 2, 177 (1962).
[Crossref]

P. L. Walraven, J. Opt. Soc. Am. 51, 1113 (1961).
[Crossref] [PubMed]

P. L. Walraven, Proc. Photobiology Congress Oxford 1964 (to be published).

P. L. Walraven, “On the Mechanisms of Color Vision,” thesis, University of Utrecht, 1962.

Ann. N. Y. Acad. Sci. (1)

W. A. H. Rushton, Ann. N. Y. Acad. Sci. 74, 291 (1958).
[Crossref]

Doc. Ophthalmol. (1)

P. L. Walraven and H. J. Leebeek, Doc. Ophthalmol. 18, 56 (1964).
[Crossref]

J. Opt. Soc. Am. (4)

J. Phys. (1)

G. S. Brindley, J. Phys. 122, 332 (1953).

Vision Res. (1)

M. A. Bouman and P. L. Walraven, Vision Res. 2, 177 (1962).
[Crossref]

Other (2)

P. L. Walraven, Proc. Photobiology Congress Oxford 1964 (to be published).

P. L. Walraven, “On the Mechanisms of Color Vision,” thesis, University of Utrecht, 1962.

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Figures (4)

Fig. 1
Fig. 1

Scheme of a zone theory of color vision.

Fig. 2
Fig. 2

Hypothetical fundamental response curves R(λ) and G(λ). When adapted with light of wavelength λa the sensitivity of the red system at λa will drop from the value Ra) ultimately to Ga). The sensitivity of the red system is then reduced with respect to the green system by a factor ρ as indicated [see Eq. (2)].

Fig. 3
Fig. 3

Experimental results: after adaptation to 500 nm, shown at left; after adaptation to 650 nm shown in center. The derived fundamental response curves for the normal observer P. L. W. are shown at the right, together with the luminosity curve without preadaptation.

Fig. 4
Fig. 4

Experimental results for the deuteranomalous observer A. v. H. Same arrangement as in Fig. 3.

Equations (8)

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R ( λ 1 ) + G ( λ 1 ) = a ( λ 1 ) ,
ρ R ( λ 1 ) + G ( λ 1 ) = δ b ( λ 1 ) ,
ρ R ( λ 2 ) + G ( λ 2 ) = δ b ( λ 2 ) ,
R ( λ 2 ) + G ( λ 2 ) = a ( λ 2 ) ,
R ( λ 1 ) + σ G ( λ 1 ) = c ( λ 1 ) ,
R ( λ 2 ) + σ G ( λ 2 ) = c ( λ 2 ) .
ρ = G ( λ 1 ) / R ( λ 1 )
σ = R ( λ 2 ) / G ( λ 2 ) .