Infrared Test: Modified Lens with no Filters

The camera was mounted on a tripod and was focused on a CD-Rom disc spinning on a turntable.

A movie of the spinning CD was created using the flourescent lighting in the room. Click here to see the movie using flourescent light.

Next, all of the room lights were turned out and the spinning CD was illuminated with infrared light from a TV remote control. Click here to see the movie using an infrared light source. The flickering of the light is due to the continuous sending of control codes by the remote control.

As would be expected, the movie using the flourescent lighting has recorded all of the colors in the spectrum of visible light that are being reflected by the CD. However, when using the infrared light source for illumination, only the infrared light is being picked up by the camera and recorded in black and white on the movie.