Camera imaging principle

1. The charge-coupled device (CCD) receives the image transmitted from the optical lens, converts it into a digital signal through an analog-to-digital converter, and stores it in the memory. The optical lens of a digital camera is the same as that of a traditional camera, focusing the image on a photosensitive device, a (light) charge-coupled device (CCD). CCD replaces the position of photosensitive film in traditional cameras, and its function is to convert light signals into electrical signals, the same as television photography. CCD is a semiconductor device and is the core of a digital camera. The number of units in the device determines the imaging of the digital camera.

2. A camera is a device that uses optical imaging principles to form images and uses film to record images. It is an optical instrument used for photography. In modern social life, there are many devices that can record images, and they all have the characteristics of cameras, such as medical imaging equipment, astronomical observation equipment, etc.

3. After the light reflected from the scene being photographed is focused through the photographic lens (objective lens) and the shutter that controls the exposure, the scene being photographed forms a latent image on the photosensitive material in the camera obscura, which is processed after processing (i.e. development, fixation) to form a permanent image. This technology is called photography, which is divided into general photography and professional photography.