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How Night Vision Works – series conclusion

Near Infrared Illumination

A popular & sometimes inexpensive method for performing night vision in very low-light is by near infrared illumination. In this method, a device that is sensitive to invisible near infrared radiation is used in conjunction with an infrared...

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How Night Vision Works – Part 4

Thermal Imaging

Different from low-light imaging methods of night vision (which require some ambient light in order to produce an image), thermal imaging night vision methods do not require any ambient light at all. They operate on the principal that all objects emit infrared energy as a function of their temperature. In general, the hotter.........

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