电影的昨天和今天,第三种电子大众传播媒介电影的发展要早于广播和电视。电影的基本原理建立于1839年。当时,法国人路易斯·达圭斯发现了摄影原理:光通过光学透镜落到胶片上,可以保留一种形象。而把这种早期的胶片照射到屏幕上,给人以深邃的感觉。从19世纪60年代到70年代,达圭斯进行了这方面的各种试验。1889年,美国发明家爱迪生发明了电影放映机。这 Yesterday and today, the third electronic mass media film developed earlier than radio and television. The basic principle of the film was established in 1839. At that time, French Louise Dugues found the photographic principle: light through the optical lens onto the film, you can retain an image. And this early film exposure to the screen, giving a deep feeling. From the 1860s to the 1970s, Dagui conducted various experiments in this area. In 1889, American inventor Edison invented a movie projector. This