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Specular Holography: How (2010)

zintaglio.com

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Re: Specular Holography: How (2010)

#11

Post by EvanAnderson »

Nition wrote: post #3

When I was a kid in the 90s my parents took me to some sort of art gallery hidden upstairs above other shops, that was doing a hologram exhibition (wavefront holograms, not specular ones like in this article). It was dark inside and they had a whole lot of amazing large format holograms of various things lit up. I kind of wonder why holograms of all types aren't more popular. It's still amazing to see a 3D image on a…

This wasn’t in Chicago, perchance, was it? There was a lovely museum of holography there that I was lucky enough to visit in the early 2000’s before it closed. Your description reminds me of that.

Re: Specular Holography: How (2010)

#13

Post by Nition »

EvanAnderson wrote: post #11
Nition wrote: post #3

When I was a kid in the 90s my parents took me to some sort of art gallery hidden upstairs above other shops, that was doing a hologram exhibition (wavefront holograms, not specular ones like in this article). It was dark inside and they had a whole lot of amazing large format holograms of various things lit up. I kind of wonder why holograms of all types aren't more popular. It's still amazing to see a 3D image on a…

This wasn’t in Chicago, perchance, was it? There was a lovely museum of holography there that I was lucky enough to visit in the early 2000’s before it closed. Your description reminds me of that.

No, but that sounds like a place I would have enjoyed.

Re: Specular Holography: How (2010)

#14

Post by Modified3019 »

After seeing the "lumographic lens" video (https://www.youtube.com/watch?v=oiDqUkmozlM) I managed to dig up some interesting research on what is basically a method of milling a "lens" to project an image at an arbitrary focal point using light convergence for "white" and divergence for "dark.

https://cdfg.mit.edu/publications/fabricating-microgeometry-...

https://cdfg.mit.edu/publications/goal-based-caustics

https://cs.dartmouth.edu/~wjarosz/publications/papas11goal.m...

https://cdfg.mit.edu/publications/ in general has a considerable amount of interesting publications regarding computational design and fabrication of neat optical effects.

As does https://web.archive.org/web/20140623052716/http://lgg.epfl.c...

>Caustics are captivating light patterns created by materials bundling or diverting light by refraction or reflection. We know caustics as random side effects, appearing, for example, at the bottom of a swimming pool. In this work we show that it is possible to control caustic patterns to form almost any desired shape by optimizing the geometry of the reflective or refractive surface generating the caustic. We demonstrate how this surprising result offers a new perspective on light control and the use of caustics as an inspiring design element. Several produced prototypes illustrate that physical realizations of such optimized geometry are feasible.

Now redirects to https://www.epfl.ch/labs/gcm/publications/

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