Long-Range Night Vision With An Infrared Laser
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Project 326, a YouTube channel specializing in optical DIY, showed a long range night vision system mounted from A to Z in a garage. The result holds in a few components: a 3D printed reflector telescope, a modified webcam and an infrared laser of two watts. Upon arrival, you can see up to 650 meters in total darkness. The principle is simple (if you can say). A laser in a wavelength of 940 nanometers, totally invisible to the naked eye but dete…
Long-Range Night Vision With An Infrared Laser
Most consumer-grade night vision devices are basically a standard camera without the usual filter to block near infrared (NIR) light, which are then paired with a NIR light source that’s not visible to the human eye. Unlike the passive night vision provided by a photomultiplier tube, these can’t resolve objects beyond the beam of their illumination source. On the other hand, if, as [Project 326] did, you use an infrared laser to illuminate the s…
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