Friday, June 27, 2008

Infra-Red LED Glasses

So what's the use of Infra-Red LED Glasses? Look at the picture below: The robber is using IR Led glasses which making him to rob under CCTV vision. This is one of the defect for surveillance under the usage of CCTV. The use of IR ray to blind the CCTV is one of the method to help the robber as camera with either CCD/CMOS without very good IR band filter fixed in the lens will capture certain range of wavelength including IR. Most importantly, recently most CCTV cameras are using IR / Near IR  ray in night vision. Using a IR ray source as the torch light for the camera to capture everything under the IR ray. We do not feel / detect the IR ray as our eyes cannot accept and recognize the wavelength of IR ray. By using the counter strategy back to CCTV, the robber shine the IR ray back to the CCTV camera so bright like a torch light shining to us thus blinded the vision. To counter this defect, I recommend a toggle to toggle the IR band filter so that the security officer can detect the robber who is using this method. Or use another CCTV coupled with night vision CCTV to work in complement between each other. Here is how to construct the glasses. Easy peasy.. Anti-Paparazzi Sunglasses - video powered by Metacafe (continue reading &aquo;)

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