| 电流对小功率红光LED色度学特性的影响 |
| |
| 引用本文： | 何欣,曹冠英,张竞辉,邹念育.电流对小功率红光LED色度学特性的影响[J].真空,2012,49(2):101-104. |
| |
| 作者姓名： | 何欣 曹冠英 张竞辉 邹念育 |
| |
| 作者单位： | 大连工业大学光子学研究所,辽宁大连,116034 |
| |
| 基金项目： | “十二五”国家科技支撑计划项目(2011BAE01B06);辽宁省教育厅基金项目(NO.2008067);大连市科技计划项目(2011A12GX014) |
| |
| 摘 要： | 本文通过改变小功率红光LED的正向驱动电流,对其光谱,色品坐标,红色比等色度学参数测试,并对半高宽,主波长,色纯度进行了计算.实验表明,这些色度学参数与电流有着密切关系.红光LED随着正向电流增加光谱产生红移,色品坐标随之变化；峰值波长与主波长向长波移动；对色纯度影响不明显,红色比略有下降.
|
| 关 键 词： | 红光LED 驱动电流 色度学特性 |
Influence of driving current on colorimetric characteristics for low power red LED |
| |
| HE Xin
,
CAO Guan-ying
,
ZHANG Jing-hui
,
ZOU Nian-yu.Influence of driving current on colorimetric characteristics for low power red LED[J].Vacuum,2012,49(2):101-104. |
| |
| Authors: | HE Xin CAO Guan-ying ZHANG Jing-hui ZOU Nian-yu |
| |
| Affiliation: | (Research Institute of Photonics,Dalian Polytechnic University,Dalian 116034,China) |
| |
| Abstract: | The emission spectra,chromaticity coordinates and red ratio of low power red LEDs were measured under different forward driving currents.The full width at half maximum(FWHM),dominant wavelength and color purity were calculated.The experimental results show that colorimetric parameters have close relation with the current.With the increase of forward driving current,the emission spectra show a red-shift,and the chromaticity coordinates change accordingly.In addition,the dominant wavelength and peak wavelength increase.The color purity has no significant change,but the value of red ratio decreases slightly. |
| |
| Keywords: | red LED driving current colorimetric characteristics |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
