The difference between digital camera and video camera

1. Digital camera:

Digital cameras are mainly used to take pictures.

2. Camera:

Cameras are mainly used to record images.

Second, the principle is different:

1. Digital camera:

Light enters the camera through a lens or lens group, and is converted into a digital signal through an imaging element of a digital camera, and the digital signal is stored in a storage device through an image operation chip. The imaging element of digital camera is CCD or CMOS, which is characterized in that when light passes through it, it can be converted into electrical signals according to different light.

2. Camera:

Convert optical image signals into electrical signals for storage or transmission. When shooting an object, the light reflected by the object is collected by the camera lens and focused on the light receiving surface of the camera device, and then the light is converted into electric energy by the camera device, that is, a "video signal" is obtained.

The photoelectric signal is very weak, so it needs to be amplified by pre-amplifier circuit and then processed and adjusted by various circuits. The final standard signal can be sent to video recorders and other recording media for recording, or spread through a propagation system, or sent to a monitor for display.

Extended data

198 1 year, Sony invented the world's first electronic still camera-still video "Mavika" camera. This is the prototype of today's digital camera.

1988 At the Cologne Expo, Fuji and Toshiba exhibited the Fujixs digital still camera "DS- 1P", which was jointly developed by Fuji and Toshiba and used fast flash cards. Before and after this, Fuji, Toshiba, Olympus, Konica, Canon, etc. The trial products of Canon RC-70 1 and other digital cameras have been published one after another.

The principle of digital camera recording images on film through silver bromide's chemical changes is different from that of ordinary cameras. The sensor of digital camera is photosensitive charge coupled device (CCD) or complementary metal oxide semiconductor (CMOS).

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