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luminous efficiency

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luminous efficiency [′lü·mə·nəs i′fish·ən·sē]
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
Same as luminous efficacy; also called the luminous coefficient.


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Generally speaking, LED's luminous efficiency increases as temperature decreases.
Generally speaking, LED's luminous efficiency increases as temperature decreases.
With gradual enhancement of the luminous efficiency and application technologies, the application of the light-emitting diodes has been transferred from the initial indicator lights to screens, such as the landscape lighting, backlight, automobile lights, traffic lights, lighting areas, etc.
 
 
 
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