Traditional Culture Encyclopedia - Photography major - What is the structure of a digital camera?
What is the structure of a digital camera?
A digital camera uses the image sensing function of CCD (Charge Coupled Device) to convert the light reflected by an object into a digital signal, which is compressed and stored in a built-in memory chip (RAM) or a portable PC card.
The silver halide of traditional camera becomes pure silver ions through chemical action, and the part with less exposure is more transparent; Then the negative is fixed to avoid further chemical reaction and develop into a negative with opposite black and white. After the negative is reversed, strong light shines through the negative on the photographic paper with the photosensitive layer, so a photo comes out.
Components:
1, optical system
2. Image sensor (CCD)
3. Digital signal processing system
4. Image storage medium
5, liquid crystal display
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