Publication detail

Degradation of LED parameters during operation: Brief review of currently used models and measuring methods

PAVELKA, T. PTÁČEK, M.

Original Title

Degradation of LED parameters during operation: Brief review of currently used models and measuring methods

Type

conference paper

Language

English

Original Abstract

This paper brings a brief review of LED parameters that can be changed during the life of these types of light sources. Firstly the change of quantitative parameter of emitted light is presented (luminous flux) and following part is dedicated to change of quality parameter (spectral distribution) and change of electrical parameters. Modification of these parameters may affect the use of LEDs in lighting systems for general lighting and also in some applications with high demands on luminous flux and spectral distribution stability. Current attitudes to modelling and measuring methods and their fundamentals and deficiencies are reviewed briefly.

Keywords

LED; degradation; stress; changes; junction temperature; spectral distribution; ageing

Authors

PAVELKA, T.; PTÁČEK, M.

RIV year

2015

Released

20. 5. 2015

Publisher

VŠB-TU Ostrava

Location

Ostrava, Czech Republic

ISBN

978-1-4673-6787-5

Book

Proceedings of the 2015 16th International Scientific Conference on Electric Power Engineering (EPE)

Pages from

1

Pages to

4

Pages count

773

BibTex

@inproceedings{BUT114596,
  author="Tomáš {Pavelka} and Michal {Ptáček}",
  title="Degradation of LED parameters during operation: Brief review of currently used models and measuring methods
",
  booktitle="Proceedings of the 2015 16th International Scientific Conference on Electric Power Engineering (EPE)",
  year="2015",
  pages="1--4",
  publisher="VŠB-TU Ostrava",
  address="Ostrava, Czech Republic",
  doi="10.1109/EPE.2015.7161147",
  isbn="978-1-4673-6787-5"
}