LED lamp light attenuation detection method and system

The invention discloses a light decay detection method and system for an LED lamp. The method comprises the following steps: drawing a luminous flux change curve L1 of the LED lamp according to luminous flux data of the LED lamp; analyzing the luminous flux change curve L1 through a preset LED lamp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG LIANG, LI ZHONGCHUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	The invention discloses a light decay detection method and system for an LED lamp. The method comprises the following steps: drawing a luminous flux change curve L1 of the LED lamp according to luminous flux data of the LED lamp; analyzing the luminous flux change curve L1 through a preset LED lamp life prediction model, and determining a first sample lamp; determining a predicted luminous flux change curve L < pre > of the LED lamp according to the luminous decay rate Q1 of the LED lamp and the luminous decay rate Q < sample 1 > of the first sample lamp; and verifying the predicted service life T < pre > of the LED lamp according to the light decay rate of the LED lamp after the light decay is accelerated, and determining the predicted service life T < pre > of the LED lamp. According to the invention, the light decay condition of the LED lamp is detected by combining the light decay rates of the LED lamp in different stages with the luminous flux change curve of the sample lamp, and the remaining service li