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2011•Journal of Shaanxi University of Science & TechnologyRequires access

LUMINOUS EFFICIENCY ABOUT AMOUNT OF PHOSPHOR ON THE HIGH-POWER WHITE LED

KE Yun-jie

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Abstract

Through control the amount of the high-power white LED phosphor to detect high-power white LED luminous efficiency.At the same time,discuss the different currents on the light efficiency of LED.This paper in order to get white LED,put yellow phosphor YAG chip on blue LED.So change the amount of phosphor will affect the color coordinates of light emitted.According to the results can get the conclusion that the amount of phosphor in a certain range will make the blue LED chips get high purity white.

About this research paper

What this paper is about

Through control the amount of the high-power white LED phosphor to detect high-power white LED luminous efficiency.At the same time,discuss the different currents on the light efficiency of LED.This paper in order to get white LED,put yellow phosphor YAG chip on blue LED.So change the amount of phosphor will affect the color coordinates of light emitted.According to the results can get the conclusion that the amount of phosphor in a certain range will make the blue LED chips get high purity white.

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Available abstract

Through control the amount of the high-power white LED phosphor to detect high-power white LED luminous efficiency.At the same time,discuss the different currents on the light efficiency of LED.This paper in order to get white LED,put yellow phosphor YAG chip on blue LED.So change the amount of phosphor will affect the color coordinates of light emitted.According to the results can get the conclusion that the amount of phosphor in a certain range will make the blue LED chips get high purity white.

Key concepts: Phosphor, Luminous efficacy, Luminous flux, Optics, White light, Optoelectronics, Power (physics), Materials science

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