航空相机注释系统需要安装在成像光路里,而光路里空间有限。该设计,在注释系统中选用了两块反射棱镜,使注释光路两次折反,从而使体积最大的注释器件可以安装在输片机外,胶片上方只占用了长29 mm,宽22 mm,高17.5 mm的空间,很好地解决了胶片直线方向上空间有限的问题。并且在实际拍照工作中,得到了注释信息清晰的相片。 Aviation camera annotation system needs to be installed in the imaging light path, and the light path space is limited. The design uses two reflective prisms in the annotation system to fold the annotation light path twice so that the largest annotation device can be mounted outside the film transporter with only 29 mm long and 22 mm wide, High 17.5 mm of space, a good solution to the problem of limited space in the film straight line direction. And in the actual photo work, get a clear picture of annotation information.