3 ms·

> fiddled So did lots. Three people managed to automate, one even non-trivial. Also, it's mass produced from metal master: on a vinyl album release of Jack

by wbeaty 12y ago

> fiddled So did lots. Three people managed to automate, one even non-trivial. Also, it's mass produced from metal master: on a vinyl album release of Jack White 'Lazaretto' (with rotating angel by Tristan Duke of MIT Media Lab) Here's a long youtube playlist of scratch-holo: https://www.youtube.com/playlist?list=PL60100E8F3572CEB1 https://www.youtube.com/playlist?list=PL60100E8F3572CEB1 Still nobody has found one etched on pre-Columbian pottery glaze. Or Egyptian scrying mirrors! :)

TeMPOraL 12y ago
Thanks for the list! I'm gonna play around with this concept, seeing that I just managed to etch my first letter on a CD case.
- wbeaty 12y ago
  Something not in the original http://amasci.com/holo/ http://amasci.com/holo/ site is the discovery that if you scratch complete circles rather than arcs, then rotate the whole plate under the light, the hologram rotates around an axis normal to the plate. https://www.youtube.com/watch?v=UtmGgmhWBAc https://www.youtube.com/watch?v=UtmGgmhWBAc
mistercow 12y ago
One guy even managed to render opaque surfaces: http://blog.robindeits.com/2012/02/20/more-scratch-holograms/ http://blog.robindeits.com/2012/02/20/more-scratch-holograms...
- wbeaty 12y ago
  Like mine here? https://www.youtube.com/watch?v=XUy8lELWhJg&t=50s https://www.youtube.com/watch?v=XUy8lELWhJg&t=50s When people at work angrily insisted that these were not true holograms because you can't make opaque objects, I sat down and drew opaque objects. This was around ?1996? Instructions from published paper: sect. 3.3.1 http://amasci.com/amateur/hand1.html#331 http://amasci.com/amateur/hand1.html#331
wanderingstan 12y ago
My google skills are failing me--I can't find examples of automated creation of them. Can the scratches be created by a laser cutter? Or is there something special about the etch of a sharp point?

by wbeaty 12y ago

TeMPOraL 12y ago

Thanks for the list! I'm gonna play around with this concept, seeing that I just managed to etch my first letter on a CD case.

wbeaty 12y ago
Something not in the original http://amasci.com/holo/ http://amasci.com/holo/ site is the discovery that if you scratch complete circles rather than arcs, then rotate the whole plate under the light, the hologram rotates around an axis normal to the plate. https://www.youtube.com/watch?v=UtmGgmhWBAc https://www.youtube.com/watch?v=UtmGgmhWBAc

mistercow 12y ago

One guy even managed to render opaque surfaces: http://blog.robindeits.com/2012/02/20/more-scratch-holograms/ http://blog.robindeits.com/2012/02/20/more-scratch-holograms...

wbeaty 12y ago
Like mine here? https://www.youtube.com/watch?v=XUy8lELWhJg&t=50s https://www.youtube.com/watch?v=XUy8lELWhJg&t=50s When people at work angrily insisted that these were not true holograms because you can't make opaque objects, I sat down and drew opaque objects. This was around ?1996? Instructions from published paper: sect. 3.3.1 http://amasci.com/amateur/hand1.html#331 http://amasci.com/amateur/hand1.html#331

wanderingstan 12y ago

My google skills are failing me--I can't find examples of automated creation of them. Can the scratches be created by a laser cutter? Or is there something special about the etch of a sharp point?