首页>
外国专利>
Object distance measuring system with dual viewing system - with alternate viewing of bright and dark images
Object distance measuring system with dual viewing system - with alternate viewing of bright and dark images
展开▼
机译:带双重观察系统的物距测量系统-交替观察明暗图像
展开▼
页面导航
摘要
著录项
相似文献
摘要
A bright scene is viewed with one eye e.g. through a telescope and is then faded out by means of a diaphragm. The other eye then views a darker image of the same scene on a screen through a second optical system. Pref. the darker image is produced by illuminating the scene with a pulsed laser, whereby the natural light is eliminated by means of an interference filter and only the reflected light is brought to the screen by the gated viewing technique. An image intensifier is pref. used to produce the darker image.
展开▼