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Thanks for the advice. So, 10$ for a diode and $10 at the most for other parts? Sounds cheap enough. I only want the camera to be able to see the dot, not the beam. I'm not sure if you've seen the experiments that were done with the Nintendo Wii Remote (which has an infrared camera on the end)...

Hi I'm looking into a potential for a high school engineering project. It's pretty easy and straightforward, but I need some sort of laser that emits infrared light, that can be picked up by an infrared camera. I was wondering what lasers emit enough infrared light to be picked up by an...