What is Sub-surface Laser Engraving or a 'Bubblegram'? Technology Explained | diy grave decoration ideas | 55designers.com

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What is Sub-surface Laser Engraving or a 'Bubblegram'? Technology Explained

What is Sub-surface Laser Engraving or a 'Bubblegram'? Technology Explained | diy grave decoration ideas | 55designers.com

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#Subsurface #Laser #Engraving #39Bubblegram39 #Technology #Explained
Let’s find out how they put 3D images into glass objects. Known as a ‘Bubblegram’, vitrography or sub-surface laser engraving, this technology has been around for a very long time but remains quite niche in its applications.

Resources I used in research this video:

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diy grave decoration ideas



  1. thom1218 says:

    @4:03 – Sorry, wish you would have researched this more since it's quite interesting. The lasers in these machines HAVE to be pulsed, using a method called Q-switching to obtain high peak-power pulses that can couple their energy into otherwise transparent material. These pulses, incidentally, are in the megawatt range and over a very short time span, usually a number of nano seconds. These lasers use several IR diode lasers to "pump" a Nd:YAG laser crystal, which is frequency doubled from 1024nm to 532nm (green) in order to be able to pass into the glass target object. Interestingly, this laser technique is used in tattoo removal machines to penetrate skin and oblate sub dermal ink . CO2 lasers can do a continuous etch on glass because glass is opaque to the near IR long wavelength of CO2 lasers, and therefore they can only etch the surface. Also, because glass is opaque to CO2, more energy is transferred directly to the glass, rather than passing through it, which allows the CO2 laser to remain in CW operation (continuous wave, i.e. not Q-switched). So, the operators of these bubblegram machines do not have the option to do a "continuous blast". However, using fewer dots/bubblegram will shorten processing time and wear on the laser components. So in that sense you're right about fewer dots being more economical.

  2. CUBETechie says:

    Can it be used as data storage?

  3. Fanny Torres says:

    Thank you so much for explaining it!!

  4. Would like to see an update with how they implement the HD quality and how they are able to do multiple do do multiple images now giving it a live action effect pretty cool I always was curious about this myself think this is a going to be a good anniversary gift idea

  5. Eirik says:

    What about the ones that are spheres? Do they require much more math and processing time? Or do they make them into spheres after they have done the laser work?

  6. you talk to much , we want to see how to make .. not listening you bla bla bla .. and ur voice to loud

  7. Ron Brideau says:

    Reheating the silicate afterwards might reduce its brittleness.

  8. Pplz help me what I use software 3d designs my machine is single head machine

  9. Quite remarkable; thanks for making this. My office just got a congratulatory cylinder sub-surface etched and I was very curious how it was made!!!

  10. Amazingly interesting and useful! Thank you!

  11. try Jedrekt on youtube, he made one himself from resin. though he calls it a hologram

  12. Octo Games says:

    I remember when we found this anomaly playing with Lucite in the lab back in the mid 90's. This first time I brought home a block with my wife photo in it. Talk about brownie points that day.

  13. Tmanstomp100 says:

    If this is possible, something tells me a crystal ball that can show you the world is also possible, Imagine all the technology we haven't discovered yet

  14. Oh thank God. I needed this.

  15. UHFStation1 says:

    Awesome video. I don't suppose they are working on new materials that work as well, but aren't as breakable?

  16. so did the chicken or egg come first?

  17. Very interesting. Its amazing how the focal point is so precise that no melting or etching takes place as its entering the glass crystal. When I was going through school at ITT tech we learned a little about lasers and optoelectronics. We made holograms on pieces of clear glass like window glass. It was a pretty simple basic procedure using a beam splitter and a helium-neon (HeNe) laser in a sandbox. Beam was split to provide your object beam and the incidence beam. The best thing we used for an object to make a hologram out of was an old television tube. The detail in the holographic image was awesome. The one thing that is really odd and sometimes hard to explain is, if you break that glass every single piece of broken glass will have the entire image on it. This is because the image is a frequency of light imbeded into the glass each piece has that frequency of light in it containing the entire image, might be very small on some pieces but its all there! 👍
    I've worked with the older type (rear projection) television sets as a technician repairing them. Some TVs made by Philips/Magnavox used an optical coupling fluid between the CRT and lens. This was ethylene glycol the same chemical used for automobile coolant except it didn't have any color dye added. This fluid is considered optically transparent. It has a particular diffraction index. This index is taken into consideration for how the lenses are cut or made. The refraction index is that effect you get when you put a pole into a swimming pool and it looks like the pole is bent where it enters the water. Different fluids have more or less of that effect than other fliuds. They used that phenomenon to obtain the focus on the mirror/screen. They also used it as a cooling fluid for the CRTs to transfer heat away, being those little picture tubes (CRTs) were driven pretty hard in order to get decent brightness of the picture.
    Optoelectronics is an amazing technology. Just FYI, the term "laser" is an acronym for; Light Amplification by Stimulated Electron Radiation. 💯👍

  18. El Torino says:

    I guess you can't do this at home

  19. John Gatsby says:

    I wanted one of those 3d pictures of my family…..the clowns in the middle of the mall wanted way too much.

  20. ikram jelani says:

    Here is the compitation which is been fought in 3D android mobile industries

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