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Photometric measurement stability evaluation method for lighting equipment, photometric measurement stability evaluation apparatus, photometric measurement stability evaluation program, and recording medium thereof
Photometric measurement stability evaluation method for lighting equipment, photometric measurement stability evaluation apparatus, photometric measurement stability evaluation program, and recording medium thereof
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机译:照明设备的测光稳定性评价方法,测光稳定性评价装置,测光稳定性评价程序及其记录介质
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摘要
PROBLEM TO BE SOLVED: To provide a method for evaluation of luminous quantity measurement stability, a device for evaluation of luminous quantity measurement stability, a program for evaluation of luminous quantity measurement stability and a recording medium therefor, by which light source characteristics of a luminaire with a heat radiating structure can be made clear, and the evaluation of the stability in measuring luminous quantities of such a luminaire can be performed with good accuracy.SOLUTION: A method for evaluation of luminaire's luminous quantity measurement stability comprises the steps of: calculating luminous flux value variation characteristic parameters including an initial luminous flux value , a quantity of the change in a luminous flux value and a time constant from luminous flux values of an LED luminaire based on [Formula 1]; calculating a stationary value of luminous flux of the LED luminaire based on [Formula 4]; and calculating a degree e(t) of luminous flux value output stability which is a result of comparison between the stationary value and the luminous flux value based on [Formula 2].
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