Digital Cameras: How they work

Do you often wonder how your tiny little digital camera displays your shots only within a split second? So very effective! Is it not? Let me try to give you a better idea of how your little companion works.

The lens of your camera comprises a thick layer of tiny lenses which tries to gather and focus the most direct light onto the image sensors which has a lot of effect on your image clarity. Behind it lodges millions of CCD (charge-coupled device) sensor photo sites (one for each pixel) that translates photons into electrical charges which is converted again into a digital signal of 0s and 1s by the analog/digital converter . It is this digital-signal processor (DSP) which is both a circuitry and software that converts the digital signals into an image which is projected in a the thin-film transistor (TFT) of your camera. Lastly, it is the flash-memory card which stores all your data in a system of gated transistors called cells, which are opened and activated by the voltage of the signal from the DSP.

Enlightened? Ready to take a shot now?

Via : Popular Science