摘要
利用单个LED芯片的照度公式推导出LED方形阵列的照度公式、光斑半径和发散角公式,利用LED方形阵列的光斑半径和发散角公式研究了LED方形阵列光斑的半径和发散角随目标距离、随m值以及方形阵列的边长的变化关系。得出了这三种情况下光斑半径和发散角的变化规律。这些规律的获得为利用LED方形阵列来实现照明设计提供了定量的理论依据。
Using the single LED illumination formula,the illumination formula and the light spot radius formula and the divergence angle formula of LED square array are deduced.The light spot radius and the divergence angle of LED square array with the target distance and the m numerical of LED and the side length are studied.The changing rule of the light spot radius and the divergence angle of LED square array are derived,in order to lighting design using the LED square array provides a theoretical basis.
出处
《激光杂志》
北大核心
2015年第4期27-30,共4页
Laser Journal
基金
重庆市教委科技项目基金资助项目(KJ130713)
关键词
发光二极管
方形阵列
照度
光斑半径
发散角
LED
square array
illumination
light spot radius
divergence angle
