This is the 14713rd article published by Metalworking (MW1950PUB).
Editor's Note
A few years ago, invisible shields were all the rage on the Internet, and everyone wanted to follow suit, but like many hot topics, the public interest quickly shifted, but a London-based company, Invisibility Shield Co., did not give up, and now they have developed a reliable and effective invisible shield mechanism, which is also very light, let's take a look at the principle.
It looks like a piece of transparent glass
The man walked past and there was only one head left
The people walking in the distance are missing their lower bodies
And, when the person crouches down, it disappears completely in front of your eyes
Besides
This invisible shield also makes items disappear
The technology behind the shield function is fairly simple
Precision-designed lens arrays deflect light from the object (behind the shield) away from the viewer (front of the shield)
The lens is oriented vertically
to allow light from the object to spread as it passes through the protective cover
Light from the object's background is refracted to the observer who cannot spot the object hidden behind the shield
Lenses must have a specific shape
After experimenting with a variety of lens shapes, angles and depths and methods of mounting them on the bracket
The team identified a technique that doesn't even require the toxic resins common in such builds
That way, from the viewer's point of view
This backlight is effectively applied horizontally to the front of the protective cover
Covers an area where objects are usually visible
The shield works best against a uniform background of leaves, grass, sand and sky
But it also works well on walls, painted lines and railroad tracks.
Or some parallel background
The company offers protective covers in two sizes
Full size is approximately 3 x 2 feet
Enough to hide an adult or even two people when sitting down
The other measures approximately 12 x 8 inches
The former sells for $394
The smaller price is about $65
Do not forget that the protective cover works entirely on optical components
Therefore, no power supply is required to operate it
It weighs only 9 pounds, so it's quite portable
The shield, which is only two inches thick, is free-standing
Made of UV-resistant and temperature-resistant materials for external signage
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