Thomas Alva Edison (February 11, 1847 - October 18, 1931), was born in Milan, Ohio, USA, and died in West Orange, New Jersey, USA . Inventor, entrepreneur.
Edison was the first person in human history to use mass production principles and electrical engineering research laboratories to engage in invention patents that had a profound impact on the world. His inventions of the phonograph, the motion picture camera and the improved electric light had a great impact on the world. He made more than 2,000 inventions in his lifetime and held more than 1,000 patents.
Edison was ranked ninth among the 100 most influential people in the United States by the authoritative American magazine "The Atlantic Monthly".
Extended information:
In 1889, Edison invented a movable movie camera that used a pointed gear to drive a 19 mm wide tape without holes. Under the control of the ratchet, the tape is driven to move intermittently and punch holes at the same time. This kind of camera is driven by a motor, and the shutter shaft is linked to a phonograph. When the camera is running, the phonograph records the sound and can continuously capture images.
In 1891, Edison invented the kinetoscope, an early film display device that introduced the basic method of film projection by using an engine in front of a light source to rotate a film strip with continuous pictures at high speed, thus Producing the illusion of movement, a light source projects the image on the film onto the screen.
In 1910, Edison invented a movie camera that was a combination of a phonograph and a video camera. Under the power of the motor, the camera's light-shielding crankshaft was linked to the phonograph. When the camera was running, the phonograph could record sounds. During the screening, the gramophone runs synchronously with the picture, allowing sound and images to appear at the same time.
Reference source: Baidu Encyclopedia—Thomas Alva Edison