초록

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Abstract ▼ AI-Helper

A simple system to measure the correlated color temperature ($T_c$) and color rendering index ($R_a$) oflight sources was developed. And the T, and R, of incandescent lamps (I/L) and various fluorescent lamps(F/L) were measured with varying source voltage and power frequency....

A simple system to measure the correlated color temperature ($T_c$) and color rendering index ($R_a$) oflight sources was developed. And the T, and R, of incandescent lamps (I/L) and various fluorescent lamps(F/L) were measured with varying source voltage and power frequency. As results, $T_c$ variations of I/L and F/L with varying source voltage were relatively large, but $R_a$, variations were small. And $T_c$, $R_a$, variations of F/L under 5OkHz of power frequency were small, but over 50kHz, it is supposed that $T_c$, and $R_a$, will vary significantly.