Luminous efficiency functions by heterochromatic brightness matching for a wide range of retinal illuminance
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概要
- 論文の詳細を見る
The present photopic photometric system is based on the CIE photopic relative luminous efficiency function V(λ), most of whose data were obtained by the flicker photometry. In recent years, however, it is pointed out that the CIE V(λ) does not necessarily represent the spectral sensitivity for the brightness perception. In the present experiment, the relative luminous efficiency functions were determined by the heterochromatic brightness matching method with a 2° visual field at fovea at the various retinal illuminance levels of 1 troland through 1000 trolands. At illuminance levels higher than 10 trolands, all the relative luminous efficiency curves showed a broader shape than the CIE V(λ). In some observers the relative luminous efficiency curves became broader with increasing the retinal illuminance. The present experimental results sugges that the brightness perception is contributed from the opponent-color channels.
- 社団法人照明学会の論文
著者
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Ikeda Mitsuo
Department Of Imaging And Printing Technology Chulalongkorn University
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Yaguchi Hirohisa
Department Of Information Processing Tokyo Institute Of Technology Graduate School
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Yaguchi Hirohisa
Department Of Image Science And Engineering Faculty Of Engineering Chiba University
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Ikeda Mitsuo
Department Of Information Processing Tokyo Institute Of Technology Graduate School
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