luminous efficiency

n. The ratio of the total luminous flux to the total radiant flux of an emitting source.

luminous efficiency

n (Units) the efficiency of polychromatic radiation in producing a visual sensation. It is the radiant flux weighed according to the spectral luminous efficiencies of its constituent wavelengths divided by the corresponding radiant flux. Symbol: V

luminous efficiency

Luminous efficiency

Visual efficacy of visible radiation, a function of the spectral distribution of the source radiation in accordance with the “spectral luminous efficiency curve,’’ usually for the light-adapted eye or photopic vision, or in some instances for the dark-adapted eye or scotopic vision.

The spectral luminous efficiency of radiant flux is the ratio of luminous efficacy for a given wavelength to the value of maximum luminous efficacy. It is a dimensionless ratio. See Luminous efficacy, Photometry

luminous efficiency

[′lü·mə·nəs i′fish·ən·sē] (optics) luminous coefficient luminous efficacy

luminous efficiency

Same as luminous efficacy; also called the luminous coefficient.

单词	luminous efficiency
释义	luminous efficiency luminous efficiency n. The ratio of the total luminous flux to the total radiant flux of an emitting source. luminous efficiency n (Units) the efficiency of polychromatic radiation in producing a visual sensation. It is the radiant flux weighed according to the spectral luminous efficiencies of its constituent wavelengths divided by the corresponding radiant flux. Symbol: V luminous efficiency Luminous efficiency Visual efficacy of visible radiation, a function of the spectral distribution of the source radiation in accordance with the “spectral luminous efficiency curve,’’ usually for the light-adapted eye or photopic vision, or in some instances for the dark-adapted eye or scotopic vision. The spectral luminous efficiency of radiant flux is the ratio of luminous efficacy for a given wavelength to the value of maximum luminous efficacy. It is a dimensionless ratio. See Luminous efficacy, Photometry luminous efficiency [′lü·mə·nəs i′fish·ən·sē] (optics) luminous coefficient luminous efficacy luminous efficiency Same as luminous efficacy; also called the luminous coefficient. MedicalSeeluminous efficacy
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