Study and Implement of Daylight Simulation Based on Mixing Technique for LED light sources

碩士 === 國立臺灣科技大學 === 電機工程系 === 95 === The thesis is devoted to design and achieve an illuminant with desired correlated color temperature (CCT) by mixing up the individual light output from different LED light sources which is red, greed, and blue LEDs (RGB-LEDs) respectively. By adjusting the differ...

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Main Authors: Kuan-shien Liu, 劉冠顯
Other Authors: Horng-ching Hsiao
Format: Others
Language:zh-TW
Published: 2007
Online Access:http://ndltd.ncl.edu.tw/handle/b5yf43
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spelling ndltd-TW-095NTUS54420832019-05-15T19:48:56Z http://ndltd.ncl.edu.tw/handle/b5yf43 Study and Implement of Daylight Simulation Based on Mixing Technique for LED light sources 應用LED混光技術於全日光模擬研究 Kuan-shien Liu 劉冠顯 碩士 國立臺灣科技大學 電機工程系 95 The thesis is devoted to design and achieve an illuminant with desired correlated color temperature (CCT) by mixing up the individual light output from different LED light sources which is red, greed, and blue LEDs (RGB-LEDs) respectively. By adjusting the different weighting of RGB-LEDs, one is able to get an illuminant which will produce a light feeling very similar to nature daylight. The research uses the color-of-gravity law of color mixture to calculate the flux weights of RGB color, then an optical tool software, Trace Pro, was used to design the layout of RGB-LEDs in order to simulate the weighting results. Based on the simulation results, a digital signal processor (DSP) control chip was adopted to modulate the duty cycle of RGB-LEDs′ drivers to get different weights by using PWM modulation techniques. Finally, a promote type illuminant was constructed and measured by a testing equipment, all digital lighting measure system, to certificate the overall quality. Keywords:Luminous intensity, LED light sources, Color temperature Horng-ching Hsiao 蕭弘清 2007 學位論文 ; thesis 113 zh-TW
collection NDLTD
language zh-TW
format Others
sources NDLTD
description 碩士 === 國立臺灣科技大學 === 電機工程系 === 95 === The thesis is devoted to design and achieve an illuminant with desired correlated color temperature (CCT) by mixing up the individual light output from different LED light sources which is red, greed, and blue LEDs (RGB-LEDs) respectively. By adjusting the different weighting of RGB-LEDs, one is able to get an illuminant which will produce a light feeling very similar to nature daylight. The research uses the color-of-gravity law of color mixture to calculate the flux weights of RGB color, then an optical tool software, Trace Pro, was used to design the layout of RGB-LEDs in order to simulate the weighting results. Based on the simulation results, a digital signal processor (DSP) control chip was adopted to modulate the duty cycle of RGB-LEDs′ drivers to get different weights by using PWM modulation techniques. Finally, a promote type illuminant was constructed and measured by a testing equipment, all digital lighting measure system, to certificate the overall quality. Keywords:Luminous intensity, LED light sources, Color temperature
author2 Horng-ching Hsiao
author_facet Horng-ching Hsiao
Kuan-shien Liu
劉冠顯
author Kuan-shien Liu
劉冠顯
spellingShingle Kuan-shien Liu
劉冠顯
Study and Implement of Daylight Simulation Based on Mixing Technique for LED light sources
author_sort Kuan-shien Liu
title Study and Implement of Daylight Simulation Based on Mixing Technique for LED light sources
title_short Study and Implement of Daylight Simulation Based on Mixing Technique for LED light sources
title_full Study and Implement of Daylight Simulation Based on Mixing Technique for LED light sources
title_fullStr Study and Implement of Daylight Simulation Based on Mixing Technique for LED light sources
title_full_unstemmed Study and Implement of Daylight Simulation Based on Mixing Technique for LED light sources
title_sort study and implement of daylight simulation based on mixing technique for led light sources
publishDate 2007
url http://ndltd.ncl.edu.tw/handle/b5yf43
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