The theory behind it is simple. Under normal light, the visible and infrared lights can pass through some type of material covering an object and are reflected by the object's surface. The reflected visible light is too strong and saturated to see. Therefore the covered object surface can not be visible using naked eyes. However, if the reflected visible light is filtered out and only the reflected infrared and the required light is captured using special made sensitive cameras, the covered object surface will be visible.
Some materials completely block the naked eye from seeing through it.
But with this camera , you can see through it. With your purchase. We will include a piece of clothing material that you can test the X-RAY effect for yourself. We guarantee that it will see through many types of clothes or materials that the naked eye cannot see through at all. Materials we have tested it on cannot be seen through by the naked eye, we folded the materials up in to 2 folds and the camera still sees through them.