There has been an influx of projects on the internet claiming to protect an individual from surveillance cameras. Some use lasers
. Others use balloons and static electricity
. The ones that I found most intriguing used infrared (IR) LEDs.
I resolved to replicate the projects that used IR LEDs. Towards this end, I lined the hood of a hoodie with 10 high-intensity IR LEDs all the while documenting the project to share with others. In fact, I was super-excited to share this project with others when I was done with it. So, modeling my project after those that came before me, I inserted the LEDs, wired them up, plugged it in and took a picture of myself with a camera modified to view IR light. When I flipped the camera around to look at the picture, the first thing I noticed was that it hadn't worked. Instead of creating a halo of light in place of my head, I looked like I was wearing a sweatshirt lined with Christmas lights.
I was ready to write the whole thing off as a fake, but I figured that perhaps the project required some more thorough testing and that is precisely what I did.Update:
Please stop telling me I used the wrong kind of IR LEDs, I powered them incorrectly, I used the wrong kind of camera (I didn't), the LEDs are meant for pulsing or that you are simply smarter than me (I don't care).
Most of you are missing a key point. The simple fact of the matter is that the viewing angle (even a high viewing angle) will not protect you if you turn your head slightly away from the camera. Assuming that you will not always know where the camera is, the prior devices that my work is modeled after won't do much to help you.
In short, it is of my opinion, that we have all probably been misled.
Cryptography that only works maybe sometimes if the hardware is old enough and Jupiter is perfectly aligned with Saturn is ineffective cryptography. The same could be said for personal-protection camera blockers. If the device is incapable of hiding your face from every IR camera at every angle, at all times, then it doesn't work. Heck, I would settle for a device that can hide you from all IR-enabled security cameras at night, but I even doubt this is possible using current methods.
Like I said, if anyone can take my experiment and make it work without altering it too much... take 12 5mm IR LEDs with no more than 12v of power and make it work at all viewing angles (without the addition of optics), I would be actually very pleased to be proven wrong. However, I am suspicious as to whether anyone can do this given these parameters.