给出了计算光谱辐射通量和背景辐射通量的计算公式。
The formulas of spectral radiant flux and background radiant flux are deduced.
光通量是可见的组件，它是在辐射通量(光功率)以人眼的相对灵敏度分歧可见光谱定义。
The luminous flux is visible component that is defined in radiant flux (light power) divided by relative sensitivity of human eyes over the visible spectrum.
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