SHOWALL FUN PRANKS HIGH VOLTAGE LAZARUS-64 PHOTOGRAPHY SPY GADGETS VIDEO GAME
Figure 18 - The infrared illuminator lights up my camera as I take this photo
Figure 18 - The infrared illuminator lights up my camera as I take this photo

Figure 18 shows the minimal amount of infrared light that passes through the infrared filter on the Nikon D90, but shows how well the video camera is able to see me as I take this photo. Although it is difficult to tell from the photo of the monitor, the image on the screen is almost as bright as if the room lights were on. Because the infrared light is detected by the video camera as white light, the images look no different than what would be seen if the room lights were turned on. At 10 feet away from the illuminator, the image is almost too bright, reflecting off the camera like the light form a powerful flashlight beam. The back wall of the room 20 feet behind me is clearly visible.

Further tests revealed that the 10 LED infrared illuminator worked well in any room up to about 30 feet before the light started to fade. The beam angle on these LEDs was slightly too narrow, so a second row of 10 more LEDs pointing slightly outward would have been better. This small illuminator is probably not powerful enough for much outdoor spy use, but it was certainly good enough for use in a portable indoor night vision system or spy camera.





Figure 19 - The completed Simple Infrared Illuminator
Figure 19 - The completed Simple Infrared Illuminator

The completed Simple Infrared Illuminator shown in Figure 19 was well worth the minimal amount invested in parts and about an hour of time it took to build. You can now give your small spy camera night vision, test infrared viewers, or even give your TV remote super extended range by feeding its output through an amplifier that feeds the illuminator. Because this illuminator is so simple, it can form the output for a number if infrared experiments and give practically any security camera a decent boost in the darkness.
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