How Your Digital Camera Works ?

How Your Digital Camera Works ?
Nikon 
Canon
Sony
All has same Mechanism .

How your Digital Camera Works

I've opened up the camera in our top photo—and these are the parts I've found inside:

• Battery compartment: This camera takes two 1.5-volt batteries, so it runs on a total voltage of 3 volts ( 3 V ).
• Flash capacitor : The capacitor charges up for several seconds to store enough energy to fire the flash .
• Flash lamp: Operated by the capacitor . It takes a fair bit of energy to fire a xenon flash like this, which is why a lot of indoor flash photography quickly uses up your batteries .
• LED: A small red LED (light emitting diode) indicates when the self-timer is operating, so you can take photos of yourself more easily .
• Lens : The lens catches light from the object you're photographing and focuses it on the CCD .
• Focusing mechanism : This camera has a simple switch-operated focus that toggles the lens between two positions for taking either close-ups or distant shots.
• CCD : This is the light-detecting microchip in a digital camera . You can't actually see the CCD in this photo , because it is directly underneath the lens. But you can see what it looks like in our article on webcams .
• USB connector : You can Attach a USB cable here and connect it to your computer to download the photos you've taken. To your computer , your camera looks like just another memory device ( like a hard drive or a flash memory ).
• SD (secure digital) card slot : You can slide a flash memory card in here for storing more photos or videos . The camera has a very small internal memory that will store photos too.
• Processor chip : The camera's main digital "brain" . This controls all the whole camera's functions . It is an example of an integrated micro circuit .
• Wrist connector: The strap that keeps the camera securely tied to your wrist attaches here .
• Top case: Simply screws on top of the bottom case shown in this picture ..
• Another important part , not shown here , is the LCD (Liquid Cristal Display) display that shows you the photos you have taken . It is mounted on the back of the electronic circuit board so you can not see it in this photo .