Last week I visited New York, really an impressive city. I took a walk around a commercial zone with small shops. I saw many typical gifts and souvenirs. You, probably, have one of these things. T-shirts with the I love NY logo, small statue of liberty reproduction and similar stuff. Suddenly I saw one that seemed me very curious. It was a bucket of crystal and inside, in perfect 3D, it was reconstructed the Statue of Liberty, based on small bubbles. Finally I discovered a souvenir without the the bad style of others. You can use this laser engraved crystals as paperweights.
But How can these laser engraving crystals are made?
The first thing is to create the purest bucket of crystal (You can always find purer crystals but you must consider the price as limitating factor) The reason to use pure crystals is clear.In case of using poor quality crystals the failure risk is obviously increased. The phase of laser engraving is carried out using an assembly of 3 laser beams with length of wave “green”, one for each three-dimensional coordinate. With the unified power of these three laser engraving beams or rays, a point is produced. This point is formed by a “melting” of the crystal, forming a microscopic bubble. This repeated process thousands of times in the 3 axes of coordinates produce a perfect three-dimensional image.
Many businesses exist nowadays that are dedicated to this work. They sell smaller machines than they can be used in commercial events and that, even, some of them also include a capturing lens to three-dimensional record your face in 3D inside one of these buckets.
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