基于光斑成像的脉冲氙灯发光特性分析  

Analysis of Spark Properties of Xenon Flash Lamp Based on the Imaging Technology of Optical Speckle

作　　者：王伶俐[1] 赵友全[1] 翟瑞伟[1] 李霞[1] 姜楠[1] 刘潇[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院,天津300072

出　　处：《激光与光电子学进展》2015年第6期120-126,共7页Laser & Optoelectronics Progress

基　　金：国家重大科学仪器项目资助(2011YQ15004008);国家自然科学基金(11074134)

摘　　要：针对脉冲氙灯发光过程中光斑面积小、亮度高、脉冲闪烁的特性,提出了一种基于光学成像法捕捉氙灯发出的光脉冲。通过中性滤光片组衰减光脉冲,建立了基于电荷耦合元件(CCD)成像的光脉冲检测平台。利用脉冲氙灯控制器输出信号,触发控制连续脉冲成像,分析了脉冲氙灯发光的稳定性。通过控制脉冲高压驱动能量获得了光脉冲变化曲线。结果显示光脉冲强度随驱动回路中输入电能增加而增大,得到了与理论分析相吻合的结果。提出的光斑法可较好地应用于脉冲氙灯的光电工作特性的测试、生产质量检测和电极材料的优选。According to the flaming properties of xenon flash lamp, which is of small spot size, high brightness, and flash pulse, a new method based on optical imaging to capture the pulse flash is proposed to analyze the luminescence properties of xenon flash lamp. Through a neutral filter group attenuating light pulse, a light pulse testing platform with a charge-coupled device （CCD） is established. The continuous pulsed imaging is triggered by the output signal of xenon flash lamp controller to analyse the luminous stability of xenon flash lamp. Curves of the light pulse are obtained by controlling the high-voltage pulse driver energy. The result indicates that the intensity of light pulse increases with the driver energy increasing, which is consistent with the theoretical analysis. The speckle method proposed can be better applied to the optical and electrical performance characteristics testing, quality testing and the choice of electrode material about xenon flash lamp.

关 键 词：成像系统 光电子学 发光特性 光斑成像 光脉冲 脉冲氙灯 

分 类 号：O461[理学—电子物理学]