Have x-ray glasses been invented?
Yes. X-Ray Specs are an American novelty item, purported to allow the user to see through or into solid objects. In reality the glasses merely create an optical illusion; no X-rays are involved. But that’s novelty. If you’re talking really being able to see through things there’s this: The Advanced Intelligence Company, Ltd. manufactures a device called X-Reflect Glasses which is claimed to allow the user to partly see through certain types of clothing. These goggles are a variation of thermal imaging goggles, but are intended specifically for daylight voyeurism. They cost $2,400 as of 2008. Devices currently in development for airport security are able to see through clothing quite well. These are true X-ray devices, using backscatter X-rays. The devices are not portable and use a typical X-ray display screen, not goggles. Terahertz imaging uses electromagnetic radiation in the terahertz or far infrared range to see through objects in a similar manner to X-rays. It is currently a very