宽光谱超高速八分幅相机的光学系统设计

发布时间：2018-04-28 22:28

本文选题：光学设计 + 高速成像　；参考：《应用光学》2016年02期

【摘要】：为满足数字超高速成像需求,提高相机的时间分辨率,设计了一种工作于350nm~800nm宽波段的八分幅相机光学系统。该系统采用光阑外置的会聚光分光结构,可同时获得同一物面的八幅相同图像,针对光学系统后截距、像方数值孔径等重要光学参数对像面照度差的影响、宽光谱成像的色差校正等问题进行了分析。在Code V中对中继镜头进行设计优化,像面大小可达26mm,像方MTF在40lp/mm时对比度达0.5以上,畸变小于1%,分幅后系统像面照度差在±10%以内。模拟结果表明:八分幅相机光学系统各幅图像一致性较高。
[Abstract]:In order to meet the requirement of digital ultra-high speed imaging and improve the time resolution of the camera, an octave camera optical system working in the wide band of 350nm~800nm is designed. In this system, eight same images of the same object surface can be obtained simultaneously by using the condensed light splitting structure outside the aperture. The influence of the important optical parameters such as the back intercept of the optical system and the numerical aperture of the image on the illumination difference of the image plane can be obtained at the same time. The color difference correction of wide spectrum imaging is analyzed. The design of relay lens in Code V is optimized, the image plane size can reach 26mm, the contrast of image square MTF is more than 0.5 at 40lp/mm, the distortion is less than 1, and the illumination difference of image plane is less than 卤10%. The simulation results show that the image consistency of the optical system of the octave camera is high.
【作者单位】：天津大学光电信息科学技术教育部重点实验室;
【基金】：国防支撑项目
【分类号】：TB852.1

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