摘要
随着科学技术的发展,弹道相机也向着高分辨率、大视场方向发展。由于现有CCD不能满足大视场的要求,因此需要多个CCD进行拼接。本文研究了面阵CCD光学拼接技术,阐述了弹道相机光学拼接的原理和焦平面结构,对拼接误差进行了分析,并针对弹道相机采用两片1K×2K面阵CCD进行了拼接实验。实验结果表明,该方法的搭接误差<2μm,共面误差<4μm,基本满足弹道相机大视场和高分辨率弹道测量。
With the rapid development of technology,the ballistic camera is also developing in the direction of high resolution and large field of view.Because the existing CCDs can not meet the requirement of large field of view,it is necessary to assemble more CCDs together.In this paper,the technique of optical assembly with area array CCD was studied.Its principle and structure of focal plane were described.The measuring error was anylyzed.The assembly experiment was made on two 1 K×2 K area array CCD for ballistic camera.The experimental results showed that the method had a stitching error of less than 2 μm and a coplanar error of less than 4 μm.It could meet the requirements for measurement of ballistic camera in large field of view and high resolution.
出处
《光机电信息》
2011年第7期46-49,共4页
OME Information
关键词
面阵CCD
光学拼接
焦平面
area array CCD
optical assembly
focal plane
