CAJ | 학술논문

为了对L ED教室灯具配光，建立了复合抛物面集光器配光系统。分析了L ED光源发光特性，阐明了对L ED光源进行二次配光的必要性。建立了三维复合抛物面集光器（C PC ）模型，并由边缘光线原理计算得出三维复合抛物面集光器（C PC ）模型各参数与最大出射半角θm 的关系，分析了θm 的制约因素。由阅读灯照度均匀度要求，确定了复合抛物面集光器（C PC ）模型各参数的值，在光学分析软件Tracepro中建立了CPC模型，将LED光源置于其焦平面上，结合教室桌面与灯具距离，模拟了基于C PC配光的L ED教室灯具的照度分布。试验结果表明，C PC配光系统最大出光半角为30°时，光照均匀度超过0．7，满足建筑照明设计标准 GB 50034-2004对阅读照明的要求，该灯具有效光通可达95％以上。
위료대L ED교실등구배광，건립료복합포물면집광기배광계통。분석료L ED광원발광특성，천명료대L ED광원진행이차배광적필요성。건립료삼유복합포물면집광기（C PC ）모형，병유변연광선원리계산득출삼유복합포물면집광기（C PC ）모형각삼수여최대출사반각θm 적관계，분석료θm 적제약인소。유열독등조도균균도요구，학정료복합포물면집광기（C PC ）모형각삼수적치，재광학분석연건Tracepro중건립료CPC모형，장LED광원치우기초평면상，결합교실탁면여등구거리，모의료기우C PC배광적L ED교실등구적조도분포。시험결과표명，C PC배광계통최대출광반각위30°시，광조균균도초과0．7，만족건축조명설계표준 GB 50034-2004대열독조명적요구，해등구유효광통가체95％이상。
A compound parabolic collector light distribution system was established for light dis-tribution of LED lamps in the classroom .First the characteristics of the LED light source were analyzed ,as well as the necessity of the secondary light distribution for the LED light source . The 3D nonimaging optics compound parabolic collector (CPC) model was established .The re-lationship between its parameters and the maximum exit half angle θm was calculated by the edge light principle and the restricting factors of θm were given .Then the values of all parame-ters of CPC model were determined according to the reading lamp illumination uniformity re-quirements ,the CPC model was built in the optical analysis software Tracepro .The LED light source was placed on the focal plane of CPC model and the LED classroom lighting illumination distribution based on CPC was simulated combining with classroom desktop and the lamp dis-tance .Results showed that the light uniformity cound reach more than 0 .7 and satisfy the building lighting design standard GB 50034-2004 for reading lighting requirements as θm was greater than 30° ,the effective optical flux was more than 95% .