reliability assessment test

[henchman]

i have a school project to perform a reliability assessment test on a simple webcam that makes use of a plastic len. Am currently having a problem in designing the circuit diagram of the webcam in question. i am hoping if anyone can help me the circuit diagram or a simple tip on how best to design it and if anyone can tell me the output voltage from a USB port..,. i was thinking 5volts but not sure

 

[Sceadwian]

You're not going to find much for home build web cams, store bought ones are too cheap to warrant it. If this is just for a reliability study, buy the cheapest one you can find at a local electronics store.