Investigation of Color Shift of Plastics Lenses in LED-Based Products

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Although color shift is one of the key issues to be considered for the failure of LEDs products, there is limited literature that correlated LED products' lifetime performance to their color shift over time. This is mainly due to the lack of a suitable model to define the color shift over time. In this paper, a methodology for characterizing and predicting the color shift of the polycarbonate materials in LED products is developed. It had shown that the color shift follows the 1st order reaction. Furthermore, the rate coefficient k of the reaction was found to follow Arrhenius relationship with activation energy of 0.046eV.

Original languageEnglish
Title of host publication2013 10th China International Forum on Solid State Lighting, ChinaSSL 2013
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages81-84
Number of pages4
ISBN (Electronic)978-1-4799-2250-5
DOIs
Publication statusPublished - 2013
Event10th China International Forum on Solid State Lighting - Beijing Kuntai Hotel, Beijing, China
Duration: 10 Nov 201312 Nov 2013
Conference number: 10

Conference

Conference10th China International Forum on Solid State Lighting
Abbreviated titleChinaSSL 2013
CountryChina
CityBeijing
Period10/11/1312/11/13

Keywords

  • Reliability
  • Acceleration
  • Analysis of variance

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