SHOWALL FUN PRANKS HIGH VOLTAGE LAZARUS-64 PHOTOGRAPHY SPY GADGETS VIDEO GAME
Figure 16 - Looking at the infrared output on the monitor in a brightly lit room
Figure 16 - Looking at the infrared output on the monitor in a brightly lit room

When the room lights are on, the infrared illuminator makes only a slight difference in the well lit scene, but it is still easy to see the output on the video monitor. Figure 16 shows the ring of LEDs glowing white on the monitor, yet I can only see pure black when looking at them. The illuminator is certainly working, so the next tests will be done in the darkness.



Figure 17 - With the lights off, the illuminator becomes a very bright source of light
Figure 17 - With the lights off, the illuminator becomes a very bright source of light

Figure 17 shows the intense glow from the 10 infrared LEDs as they shine directly into the camera lens while the room is dark. The LEDs seem so bright to the camera in the dark that they swamp out everything else completely. This camera almost sees in the dark by itself, but with the help of the infrared illuminator, it can see an entire room in compete darkness. Interestingly, the Nikon D90 that I am using to take these photos only sees a very slight blue glow from the LEDs because it contains an infrared filter over its image sensor that blocks out most of the infrared light. I have not been brave enough to dig into the camera to see if I can remove the filter to make a night vision camera, but one day that will make for another interesting hack.

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