Abstract
While becoming interested in higher quality lighting, people have revalued candle lighting. In order to develop an LED lighting system simulating comfortable fluctuation of Japanese candles, this study measured and analyzed modulation of Japanese candles. The result of the analysis suggested that: (1) the power of the modulation of the candle flame decreases as an inverse function of frequency, and (2) the frequency of Japanese candles was different from the frequency of Western candles especially around a frequency of 10Hz. Additionally, in this frequency range, Japanese candles have a distinctive modulation pattern in which candle flame extends and shrinks like a spring.
