分幅相机像面一致性分析及分幅方法改进
发布时间：2018-08-06 12:45
【摘要】：为了提高分幅相机的像面一致性,从分孔径和分振幅两种分幅方法的原理出发,分析了物体辐射特性影响像面一致性的原因.基于光纤传像器件匀光作用,提出了一种提高像面一致性的方法,并以棱锥分孔径实现六分幅为例,在LightTools软件中仿真了光纤面板厚度、纤芯直径、光线入射角度等参量对像面一致性的影响.结果表明,当光束主光线在光纤前端的入射角在±15°内变化时,增大光纤面板厚度或减小纤芯直径,可使得六幅像面能量差小于0.3%.基于光纤传像器件的棱锥分幅结构,可有效提高分幅相机的像面一致性.
[Abstract]:In order to improve the image surface consistency of the splitter camera, the causes of the effect of object radiation characteristics on the image surface consistency are analyzed based on the principle of split aperture and amplitude-splitting methods. Based on the uniform light effect of optical fiber image transmission device, a method to improve the consistency of image plane is proposed. The thickness of optical fiber panel and the diameter of fiber core are simulated in LightTools software. The influence of the angle of incidence of light on the consistency of image plane. The results show that when the incident angle of the main beam is within 卤15 掳, increasing the thickness of the fiber panel or reducing the diameter of the fiber core can make the energy difference of the six image planes less than 0.3. The prism and cone splitter structure based on the optical fiber image transmission device can effectively improve the image surface consistency of the splitter camera.
【作者单位】： 天津大学精密仪器与光电子工程学院光电信息科学技术教育部重点实验室;
【基金】：国防支撑项目资助~~
【分类号】：TB852.1
本文编号：2167779
[Abstract]:In order to improve the image surface consistency of the splitter camera, the causes of the effect of object radiation characteristics on the image surface consistency are analyzed based on the principle of split aperture and amplitude-splitting methods. Based on the uniform light effect of optical fiber image transmission device, a method to improve the consistency of image plane is proposed. The thickness of optical fiber panel and the diameter of fiber core are simulated in LightTools software. The influence of the angle of incidence of light on the consistency of image plane. The results show that when the incident angle of the main beam is within 卤15 掳, increasing the thickness of the fiber panel or reducing the diameter of the fiber core can make the energy difference of the six image planes less than 0.3. The prism and cone splitter structure based on the optical fiber image transmission device can effectively improve the image surface consistency of the splitter camera.
【作者单位】： 天津大学精密仪器与光电子工程学院光电信息科学技术教育部重点实验室;
【基金】：国防支撑项目资助~~
【分类号】：TB852.1
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