CAJ | 학술논문

针对集成光源难以实现小发光角的问题，提出了一种大功率COB光源实现窄光束的设计方法。根据COB光源的出射光分布以及预设的光分布范围选用折射-折射(RR)系统。以选定的COB光源的光谱分布及配光曲线为标准建立光源模型，由复合抛物面(CPC)实现朗伯光源60°的聚光之后，再利用光学扩展量守恒以及同步多曲面方法(SMS)求得透镜前后两个曲面轮廓上点的坐标，进行曲线拟合获得轮廓曲线，进而得到透镜的三维模型。采用光学仿真软件对系统进行光线追迹，结果表明：系统在出光口处的发散角控制在30°之内，半光强度角为11.336°，整体光效达到89.398%，效果良好。
침대집성광원난이실현소발광각적문제，제출료일충대공솔COB광원실현착광속적설계방법。근거COB광원적출사광분포이급예설적광분포범위선용절사-절사(RR)계통。이선정적COB광원적광보분포급배광곡선위표준건립광원모형，유복합포물면(CPC)실현랑백광원60°적취광지후，재이용광학확전량수항이급동보다곡면방법(SMS)구득투경전후량개곡면륜곽상점적좌표，진행곡선의합획득륜곽곡선，진이득도투경적삼유모형。채용광학방진연건대계통진행광선추적，결과표명：계통재출광구처적발산각공제재30°지내，반광강도각위11.336°，정체광효체도89.398%，효과량호。
For integrated light source cannot be easily realized with small emitting angle, a method of designing narrow beam for high-power COB light source is proposed. According to light distribution of the source and the desired light distribution of emergent rays, an optical system with Refraction-refraction(R-R) was chosen. The source model was established based on spectral distribution and relative intensity of the chosen COB light source, and then the divergence angle of a Lambertian source was reduced to 60° by using the Compound Parabolic Concentrator(CPC). Points on profile curves of the front surface and the behind surface of the lens were obtained with the extended conservation law and the Simultaneous Multiple Surface (SMS). Profile curves were obtained by curve fitting with these points, and then the lens model was established with three-dimensional software. The optical system was simulated with ray-tracing software. The results show that the divergence angle of the system is controlled within 30° in the optical port, the angle of the half of light intensity is 11.336°, and the total luminous efficiency is up to 89.398%.