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Ucrystal.com is a registered website of Rainbow Gifts company. We specialize in 2D or 3D custom photo crystal engraving. We are located in San Jose, California, in the heart of the Silicon Valley and the San Francisco Bay Area in Northern California. We provide custom photo crystal engraving services to customers in the United States and beyond.
By fusing the state of the art advanced laser technology with high-purity photo crystals, we combine the high-tech tradition of the Silicon Valley with the modern art of digital photography to bring you the elegance of custom photo crystal engraving. Traditional print photographs can also be easily laser etched into the crystals once digitized by a photo scanner.
Laser photo crystal engraving is also known as sub-surface laser photo crystal engraving, photo laser crystal etching, and photo crystal inner laser engraving.
In our custom photo crystal engraving machines, a diode-pumped semiconductor Nd:YVO4 laser produces a high intensity green laser beam (wavelength at 532nm), which is focused into a transparent laser crystal (made of high purity BK7 crystal or equivalent). At its focal point inside the laser crystal, the laser beam intensity is high enough to cause a structural change so a point is marked permanently. By marking and connecting many dots through precision computer machine control, a complete image is formed inside the photo crystal while its surface remains unaltered and smooth.
2D laser photo crystal engraving is often referred to as 2.5D laser photo crystal engraving. It can be done directly from digital photographs or scanned prints. Even though the original photographs are always 2D, the Laser etched photos inside the crystals are always 2.5D due to added depth (or layers) during engraving.
3D laser photo crystal engraving can be done once the photographs are converted from 2D to 3D by our artists. It is best used for head engraving.
Knowingly or not, we use lasers already in many ways such as long-distance communications, metal-welding, vision correction, and defense. 3D photo crystal engraving is another wonder laser technology gives us! Unlike photo printing, the photo crystal etching process does not use any chemicals nor produces any waste. It is truly a green process.