The IR-LED approach works well with bright LEDs, but is naturally futile with cameras that filter their wavelength.

Best case would be that the field of view of the camera would turn to ‘snow’, worst case, it would do nothing..

..and for everyone beating up on this guy for LED selection.. at least he tried something.. I give him props for making a reasonable effort in the first place…

you could use a camera without an IR filter to help with the aiming…

better than a normal laser pointer, cuz no security personnel would know where the lights comin from…

(I’m tired as hell… This all probably sounds retarded)

And use high power LEDs, kids.

If he used a luxeon IR LED the results would have been different.

Also an IR laser out of a CD burner might work well too but this is dangerous since a near infrared laser powerful enough to kill a camera also can fry someone’s retinas.
BTW cameras in theory should have a second weakness they do tend to be scanned like tvs the analog kind anyway so maybe transmitting an RF pulse that looks like a sync signal could mess it up.
The digital kind maybe try and make the pulse looks like the signal encoding for USB or ethernet.
802.11 wireless cams would be far easier to jam then any wireless cameras you wouldn’t even have to bother with LEDs just 3 watts worth of white noise on the 2.4GHz ISM band should do the job.
Other frequencies of interest 2.45GHz and 900mhz for analog wireless cameras.
I also wonder if near UV also could be used instead of IR though this would make many materials fluoresce.
BTW this kinda reminds me of the optical jamming used in the tv show Phantom 2040.

http://www.youtube.com/watch?v=2y3HWR3NMDQ&fmt=18

Filmed in low light conditions (that’s a streetlight in the window).

The first camera is a colour Sony 0.5 LUX CCD bullet camera, with it’s standard IR filter.
The second camera is an identical bullet camera but I removed the IR filter from the CCD.
The third camera iw a black/white 0.04 LUX camera just thrown in out of curiosity.

As for hiding your face from cameras with IR filters? I’d hazard a guess that is’s possible but you’d probably need a significant amount of high intensity wide angle IR LEDs surrounding your face. I could have a stab at the ‘problem’ further but I’d rather spend time sticking the IR LEDs and a camera to my Sony LCD glasses – instant nightvision goggles!