论文部分内容阅读
从理论上讲,转镜式扫描高速摄影机的成象光束在弧矢面和子午面上都会聚于胶片安装面的同一点。但是,由于高速转镜镜面呈抛物园园柱面变形(不可能呈现球面变形),使成象光束在子午面上离焦而产生象散,并在胶片安装面上产生弥散园,使最小分辨时间增大。在计算转镜变形产生的象散、弥散园及其对最小分辨时间的影响时,目前国内外有关文章的作者都认为成象光束在子午面离焦,其焦点仍然位于镜面不变形情况下的反射主光线上,就是说镜面变形和不变形时反射主光线重合。
In theory, the imaging beam of a gantry high-speed camera converges on the sagittal and meridional surfaces at the same point on the film mounting surface. However, due to the high-speed mirror mirror was a parabolic garden cylindrical deformation (spherical deformation can not be presented), so that the image beam defocus generated in the meridian astigmatism, and in the film installation surface to create a dispersion garden, so that the minimum resolution Time increases. When calculating the astigmatism, dispersion garden and its influence on the minimum resolution time caused by the deformation of the rotating mirror, the author of the relevant articles both at home and abroad thinks that the imaging beam is defocused on the meridional surface and its focal point is still located in the mirror-free state Reflection of the main light, that mirror deformation and non-deformation of the main reflection light coincidence.