Research note
Luminous efficiency function for small stimulus size
1981 年 5 巻 1 号 p. 1_25-1_27
詳細
1981 年 5 巻 1 号 p. 1_25-1_27
Luminous efficiencies obtained for a small test field of 2.3' showed a simple and narrow type of curve regardless of experimental methods, flicker photometry and heterochromatic brightness matching. Past available data of luminous efficiencies for small fields were collected from published papers and plotted together on one graph, from which a single curve was derived to represent the luminous efficiency function for point sources. The function resembled the CIE V(λ).
