How to Make a Webcam Into an Infrared Camera

This article describes how to modify an ordinary webcam to capture images in the near infrared wavelength. All that is needed are two very small pieces of completely black photographic negative.
Steps:
1. Open the webcam casing.
2. Unscrew the lens assembly from the camera PCB.
3. On the back of the lens there should be a small piece of glass that seems to reflect red light. Remove it.
4. Cut two pieces of black photographic negative the same size as the glass you just removed.
5. it the negative pieces where the glass was.
6. Re-assemble the camera.
7. Be sure to use either daylight or incandescent lighting and the webcam will now see in infra red.
Tips
1. This is only 'near-infrared', meaning it isn't going to be 'night vision' as you might expect. What this allows you to do is capture pictures of things with wonky colors and maybe see some things not necessarily visible in the normal wavelengths of human vision. Bright lights will appear very red, because you've filtered out all light except for the very far red end of the spectrum. Night vision requires a sensor capable of seeing much farther into the infrared spectrum.
2. To avoid having to use an incandescent light, try illuminating the subject/object with infrared LEDs. This way you could "see" in a darkened room (at some limited distance, depending on the intensity of the IR LEDs). A common household source of infrared light by LED is a TV remote control which makes a great little flash light for your camera. If this is too dark to see, try removing the black photographic negative squares.
Warnings
1. This will invalidate your camera's warranty so be sure to use a webcam you don't need..
2. Never mess with electricity unless you know what you're doing or have instruction from a guide or an electrician's advice.