4 ms·
Have you ever thought about making fresnel lenses out of rippling fluid? Like, sound in water or whatever. Making fine ripple pattern for lens or diff grate. I
by swayvil 5y ago
Have you ever thought about making fresnel lenses out of rippling fluid? Like, sound in water or whatever. Making fine ripple pattern for lens or diff grate.
It would be kinda programmable too.
- Wistar 5y agoI know they've thought of it using liquid crystals. https://iopscience.iop.org/article/10.1143/JJAP.24.L626/meta https://iopscience.iop.org/article/10.1143/JJAP.24.L626/meta
- novosel 5y agoYes, with Chladni oscillation figures formed with changable/programmable vessel boundary geometries.
- zokier 5y agoLook up GE Talaria system. A projection system based on modulating oil film thickness to create diffraction gratings.
- mgsouth 5y agoWikipedia entry is Talaria Projector[0]; "Talaria" has no references to it. [0] https://en.wikipedia.org/wiki/Talaria_projector https://en.wikipedia.org/wiki/Talaria_projector
- smaddox 5y agoI don't know if anyone has used ripples in a liquid, but LCD's without polarizers are used in tomography to dynamically configure a diffraction or phase-shift pattern. https://en.m.wikipedia.org/wiki/Spatial_light_modulator https://en.m.wikipedia.org/wiki/Spatial_light_modulator