There are many devices already on the market that can disabled digital cameras via a laser. The laser over loads the digital sensor (either temporary or permanently) and it's no longer able to take pictures.
There are several over the counter lasers that are strong enough to do this. Including cheap pointers used by teachers on white boards. A direct hit to the camera's lens will disable it.
I found an article on the subject. Camera Zapper
In the film Tron Legacy the character Sam Flynn disables a security camera in a hallway using a hand held laser.
There already exists automated systems that can discover cameras via a flash feedback. The device uses an IR flash and any cameras pointed in it's direction will reflect back the flash. The system can then target the camera and strike the sensor with a powerful laser to disable it.
This has already been used by rich people to protect their privacy. Yacht Comes Equipped With Laser-Powered Anti-Paparazzi Shield
No I don't think so. He uses a small tiny hand held device to disable multiple cameras in one shot. In addition, the camera's appear to also be without power. A laser would only disable the sensor and only temporary.
Still, the technology is base upon things in the real world.
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