UA88970U - Method for prediction of degradation of light-emitting diodes and led modules - Google Patents

Method for prediction of degradation of light-emitting diodes and led modules

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Publication number
UA88970U
UA88970U UAU201311904U UAU201311904U UA88970U UA 88970 U UA88970 U UA 88970U UA U201311904 U UAU201311904 U UA U201311904U UA U201311904 U UAU201311904 U UA U201311904U UA 88970 U UA88970 U UA 88970U
Authority
UA
Ukraine
Prior art keywords
light
emitting diode
led module
elements
tintern
Prior art date
Application number
UAU201311904U
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Олександр Євгенович Бєляєв
Раїса Василівна Конакова
Ярослав Ярославович Кудрик
Віктор Михайлович Сорокін
Володимир Вікторович Шинкаренко
Володимир Миколайович Шеремет
Original Assignee
Інститут Фізики Напівпровідників Ім. В.Є. Лашкарьова Національної Академії Наук України
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Інститут Фізики Напівпровідників Ім. В.Є. Лашкарьова Національної Академії Наук України filed Critical Інститут Фізики Напівпровідників Ім. В.Є. Лашкарьова Національної Академії Наук України
Priority to UAU201311904U priority Critical patent/UA88970U/en
Publication of UA88970U publication Critical patent/UA88970U/en

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Abstract

A method for prediction of degradation of light-emitting diodes and LED modules is in loading the light-emitting diodes or LED modules with direct current, with registration of intensity of light L of the light-emitting diode or the elements of the LED module during time t at different stabilized temperatures Textern. Additionally temperature of the p-n transition Tintern. of single light-emitting diode or each element of the LED module is measured, this is determined through previous measurement of not heating pulse volt-ampere characteristics of the light-emitting diode or the elements of the LED module at different temperatures of environment, with calculation of volt-temperature characteristic of the p-n transition of the light-emitting diode or the elements of the LED module at direct current from those, with measurement of voltage on the light-emitting diode or the elements of the LED module at operation. Temperature Tintern. of the p-n transition of the light-emitting diode or the elements of the LED module is determined, and through the formula L(t, Tintern.)=((Tintern(exp (-m(t) heating coefficient ( and time coefficient m are calculated, by those degradation of intensity of light L(t, Textern.) of the light-emitting diode or the LED module with time t is predicted.
UAU201311904U 2013-10-09 2013-10-09 Method for prediction of degradation of light-emitting diodes and led modules UA88970U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
UAU201311904U UA88970U (en) 2013-10-09 2013-10-09 Method for prediction of degradation of light-emitting diodes and led modules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
UAU201311904U UA88970U (en) 2013-10-09 2013-10-09 Method for prediction of degradation of light-emitting diodes and led modules

Publications (1)

Publication Number Publication Date
UA88970U true UA88970U (en) 2014-04-10

Family

ID=56267130

Family Applications (1)

Application Number Title Priority Date Filing Date
UAU201311904U UA88970U (en) 2013-10-09 2013-10-09 Method for prediction of degradation of light-emitting diodes and led modules

Country Status (1)

Country Link
UA (1) UA88970U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113766703A (en) * 2020-06-05 2021-12-07 华域视觉科技(上海)有限公司 LED lighting module, rated output current setting method of LED driving power supply and vehicle lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113766703A (en) * 2020-06-05 2021-12-07 华域视觉科技(上海)有限公司 LED lighting module, rated output current setting method of LED driving power supply and vehicle lamp

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UA88970U (en) Method for prediction of degradation of light-emitting diodes and led modules