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二、串列式镜头 X线影象增强器电视镜头摄取的对象和成像的要求有别于一般工业电视的镜头,在X线影象增强器电视中采用的是一种串列式镜头。这种镜头除了具有一般摄象镜头的特性外,还应具有一个相对孔径大和物像距短的特点。所谓串列式镜头,就是将两只大相对孔径的光学镜头串联对接而成的光学系统。在使用时,其中一只光学镜头安装在摄象机端,另一只光学镜头安装在X线影象增强器输出端。调整光学镜头到X线影象增强器输出屏和到摄象管靶面的距离,使两只镜头的焦平面分别与X线影象增强器输出屏和摄象
Second, the tandem-style X-ray image intensifier television camera to take objects and imaging requirements are different from the general industrial television camera, X-ray image intensifier TV is used in a tandem lens. In addition to this kind of lens has the characteristics of the general camera lens, but also should have a relatively large aperture and short image characteristics. The so-called tandem lens, is the optical system of two large relative aperture optical lens connected in series. In use, one of the optical lenses is mounted on the camera side and the other optical lens is mounted on the X-ray image intensifier output. Adjust the optical lens to the X-ray image intensifier output screen and the distance to the target tube surface, so that the focal plane of the two lenses and X-ray image intensifier output screen and camera