Abstract

In order to establish the luminous-efficiency function for mesopic vision of the standard observer, luminous efficiency functions were measured with the direct heterochromatic brightness-matching method at retinal illuminance in the range of -2–2 log photopic trolands in order to cover the scotopic, mesopic, and photopic conditions. A steady visual field of 10° are was presented foveally. The functions underwent the usual complicated change from a rod type of luminous-efficiency function close to <i>V</i>′(λ) to a cone function that had a wide and almost double-peaked shape. A simple formula to represent the mesopic luminous-efficiency functions was derived in which log sensitivities of scotopic and photopic vision were linearly added after being multiplied by coefficients that were dependent on the luminance level. Saturation functions were also obtained at the various luminance levels for which luminous efficiency was investigated. In spite of a great variation of luminance level, the saturation function remained more or less the same, which indicates that the chromatic channels retain their contributions to the brightness sensation at low retinal illumination.

© 1981 Optical Society of America

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  19. Technical Committee TC-1.4 of the Commission Internationale de l'Eclairage was established at the Kyoto Session (1979) by the Luminous Efficiency Functions Subcommittee to collect sufficient information regarding luminous-efficiency functions by using heterochromatic brightness matching.

1980 (1)

1978 (2)

M. Ikeda and H. Shimozono, "Luminous efficiency functions determined by successive brightness matching," J. Opt. Soc. Am. 68, 1767–1771 (1978).

P. K. Kaiser, "Request for brightness-matching data and mathematical colour-vision models," Color Res. Appl. 3, 148 (1978).

1976 (1)

D. A. Palmer, "Rod-cone mechanism underlying the Purkinje shift," Nature 262, 601–603 (1976).

1975 (2)

P. K. Kaiser and J. P. Comerford, "Flicker photometry of equally bright lights," Vision Res. 15, 1399–1402 (1975).

J. P. Comerford and P. K. Kaiser, "Luminous-efficiency functions determined by heterochromatic brightness matching," J. Opt. Soc. Am. 65, 466–468 (1975).

1973 (1)

1968 (1)

1967 (1)

D. A. Palmer, "The definition of a standard observer for mesopic photometry," Vision Res. 7, 619–628 (1967).

1964 (1)

1958 (2)

1955 (1)

1953 (1)

Bedford, R. E.

Benzschawel, T.

Bodmann, H. W.

S. Kokoschka and H. W. Bodmann, "Ein konsistentes System für photometrischen Strahlungsbewertung im gesamten Adaptationsbereich," CIE Pub. No. 36 (Commission Internationale de l'Eclairage, Paris, 1976), pp. 217–225.

Bridgman, C. S.

Comerford, J. P.

J. P. Comerford and P. K. Kaiser, "Luminous-efficiency functions determined by heterochromatic brightness matching," J. Opt. Soc. Am. 65, 466–468 (1975).

P. K. Kaiser and J. P. Comerford, "Flicker photometry of equally bright lights," Vision Res. 15, 1399–1402 (1975).

Guth, S. L.

Ikeda, M.

M. Ikeda and H. Shimozono, "Luminous efficiency functions determined by successive brightness matching," J. Opt. Soc. Am. 68, 1767–1771 (1978).

H. Yaguchi and M. Ikeda, "Luminous efficiency functions by the heterochromatic brightness matching for a wide range of retinal illuminance," J. Light Vis. Environ. (to be published).

Kaiser, P. K.

P. K. Kaiser, "Request for brightness-matching data and mathematical colour-vision models," Color Res. Appl. 3, 148 (1978).

J. P. Comerford and P. K. Kaiser, "Luminous-efficiency functions determined by heterochromatic brightness matching," J. Opt. Soc. Am. 65, 466–468 (1975).

P. K. Kaiser and J. P. Comerford, "Flicker photometry of equally bright lights," Vision Res. 15, 1399–1402 (1975).

Kinney, J. A. S.

Kokoschka, S.

S. Kokoschka and H. W. Bodmann, "Ein konsistentes System für photometrischen Strahlungsbewertung im gesamten Adaptationsbereich," CIE Pub. No. 36 (Commission Internationale de l'Eclairage, Paris, 1976), pp. 217–225.

Lodge, H. R.

Massof, R. W.

Palmer, D. A.

D. A. Palmer, "Rod-cone mechanism underlying the Purkinje shift," Nature 262, 601–603 (1976).

D. A. Palmer, "Standard observer for large-field photometry at any level," J. Opt. Soc. Am. 58, 1296–1299 (1968).

D. A. Palmer, "The definition of a standard observer for mesopic photometry," Vision Res. 7, 619–628 (1967).

Shimozono, H.

Walters, H. V.

H. V. Walters and W. D. Wright, "The spectral sensitivity of the fovea and extra-fovea in the Purkinje range," Proc. R. Soc. London, Ser. B 131,340 (1943); W. D. Wright, Researches on Normal and Defective Colour Vision (Henry Kimpton, London, 1946).

Wright, W. D.

H. V. Walters and W. D. Wright, "The spectral sensitivity of the fovea and extra-fovea in the Purkinje range," Proc. R. Soc. London, Ser. B 131,340 (1943); W. D. Wright, Researches on Normal and Defective Colour Vision (Henry Kimpton, London, 1946).

Wyszecki, G. W.

Yaguchi, H.

H. Yaguchi and M. Ikeda, "Luminous efficiency functions by the heterochromatic brightness matching for a wide range of retinal illuminance," J. Light Vis. Environ. (to be published).

Color Res. Appl. (1)

P. K. Kaiser, "Request for brightness-matching data and mathematical colour-vision models," Color Res. Appl. 3, 148 (1978).

J. Opt. Soc. Am. (10)

Nature (1)

D. A. Palmer, "Rod-cone mechanism underlying the Purkinje shift," Nature 262, 601–603 (1976).

Vision Res. (2)

D. A. Palmer, "The definition of a standard observer for mesopic photometry," Vision Res. 7, 619–628 (1967).

P. K. Kaiser and J. P. Comerford, "Flicker photometry of equally bright lights," Vision Res. 15, 1399–1402 (1975).

Other (5)

H. V. Walters and W. D. Wright, "The spectral sensitivity of the fovea and extra-fovea in the Purkinje range," Proc. R. Soc. London, Ser. B 131,340 (1943); W. D. Wright, Researches on Normal and Defective Colour Vision (Henry Kimpton, London, 1946).

Technical Committee TC-1.4 of the Commission Internationale de l'Eclairage was established at the Kyoto Session (1979) by the Luminous Efficiency Functions Subcommittee to collect sufficient information regarding luminous-efficiency functions by using heterochromatic brightness matching.

H. Yaguchi and M. Ikeda, "Luminous efficiency functions by the heterochromatic brightness matching for a wide range of retinal illuminance," J. Light Vis. Environ. (to be published).

S. Kokoschka and H. W. Bodmann, "Ein konsistentes System für photometrischen Strahlungsbewertung im gesamten Adaptationsbereich," CIE Pub. No. 36 (Commission Internationale de l'Eclairage, Paris, 1976), pp. 217–225.

"Light as a true visual quantity: principles of measurement," CIE Pub. No. 41 (Commission International de l'Eclairage, Paris, 1978), p. 37.

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