叙述了棱镜转像机构的原理, 设计了与高速转镜相机匹配的别汉棱镜转像机构, 并将其作为超高速转镜相机的固定组成部分, FJZ-250型转镜分幅和SJZ-15型转镜扫描相机通用。高速转镜相机中增配转像机构后, 对目标成像360°连续可调, 解决了多台相机同步使用时, 爆轰装置不同研究方向的测试问题, 对实验数据的获得及系统外场目标调试起了很大的作用, 极大方便了相机的使用。经像质检测及动态实验结果表明: 转镜式高速相机增配别汉棱镜转像机构后, 对相机光学系统成像质量不受影响, 甚至略有提高。

In this paper the principle of image rotating mechanism based on prism is introduced and the image rotating mechanism using Pechan prism matching the high speed rotating mirror camera is designed. The designed mechanism can be used in FJZ-250 or SJZ-15 type rotating mirror camera as a fixed part. Equipped with the designed mechanism, the rotating mirror cameras can rotate the image of the object by any angle in the range of 0°~360° before recording it. As a result, the measurement problem of different research directions of detonation test is solved when multiple cameras are used synchronously, which plays an important role in acquisition of experimental data and debugging of outdoors targets, thus, it is a great convenience for the camera. The results of the image quality specification experiment indicate that the equipment of the designed image rotating mechanism based on Pechan prism induced no degradation to the image quality and even slightly improved it.