No.8（2013）7.Developing a new LED luminaire for improved color appearance

Toshihide Iwanaga, Hirotaka Nakamura, Shigeru Ichihara, Toshiyuki Yamashita, Akio Shimokawa, Masami Ishihara

  We have developed a spectral distribution design method for color appearance by applying a color appearance model to visual experimental results using commercially available LEDs with mutually different spectra. Two prototype LED lights were developed by application of this design method, and the color appearance was estimated for the LEDs by visual experiment. As a result, compared to the commercial LEDs, the effects of 1) - reducing the color difference between illumination from the developed LED light and daylight illumination, and 2) - increasing the chroma of the color red have been shown.

Keywords
LED, Color appearance, CIECAM02, Spectral distribution design

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