Secondly, according to this principle, Prado invented the "trick board" in 1832. The "special tray" can make the picture drawn on the zigzag cardboard box move because of the movement, and can also make the generated moving picture visually decompose into various images. The appearance of the "mysterious disc" indicates that the invention of the film has entered the stage of scientific experiment.
3. The early film history in America and Europe is marked by the dispute of camera patent right. 1888, the equipment of Prince 16 lens obtained double patents in the United States, which consisted of a movie camera and a projector. His other invention, the single-lens camera (MkI), was refused a patent in the United States because a similar product already had a patent.
4. 1893, T.A. Edison invented the film mirror and founded the "prison car" studio, which was regarded as the beginning of American film history. 1896, the launch of the Vita projector began the large-scale screening of American movies. 19 At the end of the 20th century, American urban industry developed and the middle and lower class residents increased rapidly. Movies became a kind of mass entertainment to meet the needs of urban civilians. After the golden age of American movies ended, major companies began to disintegrate or change production in the middle of India, and Hayes Code was officially abolished. Then came mini-cinemas, art cinemas and drive-in cinemas. Both independent films and experimental films have developed.