How a webcam works?


Welcome back friends... I'm here with another cool topic about working of a webcam.

A webcam is a compact camera which can be used with computer to capture, broadcast real time videos and images. Just like every camera it has a small lens at the front through which it captures light using light-detectors known as charge-coupled device (CCD). This CCD will convert the picture into digital format (a binary string of 0s and 1s) which is handled by the computer.


What is inside a webcam?
So I dismantled a broken webcam for you guys to see what is there inside a webcam. 



It has a focus lens and a CCD chip mounted on a circuit board with a USB wire connected to it.

Focus lens:
The focus lens is mounted on to the circuit board. The CCD chip is placed beneath the lens. The lens can be screwed in and out to control the focus.



CCD chip:
On removing the lens, you can see the CCD chip. The small square thingy at the center is the CCD chip. To know more about CCD chips click here.



There is no battery or inbuilt memory for a webcam as it captures and transmits them to the computer immediately. The USB cable of a webcam supplies power and takes the information captured by the webcam to the computer.


Hope this was interesting..! :)


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