What did Edison invent in his life?

Edison's inventions mainly include: phonograph, movie camera, mobile movie projector, talking movie, electric lamp, nickel-iron alkaline battery and so on.

1, movable movie camera

1889 Edison invented the movable film camera. This camera uses a pointed gear to drive the tape with the width of 19mm. Under the control of the ratchet, it drives the tape to move intermittently and punch holes at the same time. This camera is driven by a motor, and the shutter shaft is connected to the phonograph. When the camera is running, the phonograph records sound and can take pictures continuously.

2. Movable film projector

189 1 year, Edison invented the movable film projector, which is an early film projection equipment, and introduced the basic methods of film projection. The motor is used in front of the light source to make the film belt of continuous pictures rotate at high speed, thus creating the illusion of motion. The light source projects the pictures on the film onto the screen.

3. electric light

From June 1879 to June 10, Edison successfully made an incandescent light bulb with carbon fiber as the filament, which was called "carbonized cotton filament incandescent lamp". Later, it was put into mass production, and a company was established to establish corresponding infrastructure such as power stations and transmission networks, which soon made electric lights widely used in the United States. During this period, he constantly improved his technology, and finally decided to use tungsten wire as the filament, which is called "tungsten lamp" and has been in use ever since, so Edison became a recognized inventor of electric lamp.

4. Audio movies

19 10, Edison invented a movie camera consisting of a phonograph and a camera. Under the energy of the motor, the camera's shading crankshaft is linked with the phonograph, which can record when the camera is running. During the screening, the phonograph runs synchronously with the picture, so that sound and image appear at the same time.

5, phonograph

1August 5, 877, Edison asked his assistant to make a "strange machine" consisting of a large cylinder, a crank, a receiver and a diaphragm according to the pattern. After the production, Edison took out a piece of tin foil and rolled it on a metal cylinder engraved with spiral grooves, so that one end of the needle gently rubbed the tin foil and the other end was connected with the receiver. Then Edison shook the crank and aimed it at the receiver. In February 65438, Edison publicly demonstrated this "tin foil cylinder phonograph", which caused a sensation all over the world.

Extended data:

Thomas Alva Edison, 1, 1847 February11931June 10, was born in Milan, Ohio, and died in West Orange, New Jersey, USA. Inventors and entrepreneurs.

2. Edison was the first person in human history who used a large number of production principles and electrical engineering research laboratories to patent inventions, which had a great and far-reaching impact on the world. There are more than 2,000 inventions and 1000 patents in one's life. It was rated as the ninth among 100 people who influenced the United States by the authoritative American periodical Atlantic Monthly.

References:

Baidu encyclopedia _ Thomas Alva Edison