Timeline for Relations/Equations to do with light diffusing materials
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Mar 30, 2019 at 13:22 | comment | added | joojaa | yes, but with opaque acrylic the subsurface scattering can amount to 50% of the effect. Though more likely to be closer to 30. See OP states that " signs will look patchy" but you can not really solve thsi problem with a local model | |
| Mar 30, 2019 at 13:11 | comment | added | Jeffrey J Weimer | @joojaa My sense is the OP is less interested in the full blown modeling approach with ray tracing and more interested in a summary that is obtained from it, especially as related to how opacity varies with thickness. Granted in retrospect, my seat of the pants rule of mixtures is crude and perhaps even limited to a specific type of system or invalid. I'll have to modify accordingly in the near future. | |
| Mar 29, 2019 at 6:15 | comment | added | joojaa | thats better, +1 for being responsive. But this is still a local model on the direct light path for it to be any use in askers situation he needs some info on how the scattering behaves outside that line. | |
| Mar 27, 2019 at 21:39 | comment | added | Jeffrey J Weimer | @joojaa OK. I've added a note about light scattering in polymers and an "off the top of my head" expression, hopefully to help the OP further appreciate the distinction between absorption and scattering of light. | |
| Mar 27, 2019 at 21:38 | history | edited | Jeffrey J Weimer | CC BY-SA 4.0 |
added note about scattering
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| Mar 25, 2019 at 16:01 | comment | added | joojaa | Yes, sortof, its just not possible to use same formula. | |
| Mar 25, 2019 at 14:00 | comment | added | joojaa | This does not sound too useful as OP clearly wants to investigate light scatters rather than absorption. But yeah i agree biggest challenge is to get good measirements. | |
| Mar 25, 2019 at 0:37 | vote | accept | inund8 | ||
| Mar 24, 2019 at 23:11 | history | edited | Jeffrey J Weimer | CC BY-SA 4.0 |
added notes to reply to comment
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| Mar 24, 2019 at 23:05 | history | edited | Jeffrey J Weimer | CC BY-SA 4.0 |
added notes to reply to comment
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| Mar 23, 2019 at 19:25 | comment | added | inund8 | I updated the question to be more clear. The sheets ARE isotropic, the variations in opacity are from batch to batch. Bulbs and tubes are not possible, due to being restricted to low voltages and small sizes. We do often flip LED's on their sides. Thank you for your answer, its at least a starting point. | |
| Mar 21, 2019 at 15:05 | history | edited | Jeffrey J Weimer | CC BY-SA 4.0 |
added 5 characters in body
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| Mar 21, 2019 at 14:42 | history | answered | Jeffrey J Weimer | CC BY-SA 4.0 |