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View Full Version : Anyone do anything cool with a UV LED -- Lightsaber build?



Jacobpac
06-29-2016, 05:51 PM
Anyone do anything cool with a UV LED -- Lightsaber build?

Just curious.

FenixFire
06-29-2016, 06:48 PM
Burn out retinas from the wave length. They are UV...most used for curing photopolymers in polyjet 3D printers. If you want to learn more about the dangers high-bandwidth blue light can do to your eyes there are plenty of medical journal articles about it. Check the wavelength of the LEDs before you purchase, and cross reference with the wavelength of a fluorescent black light as I assume that is what you are getting at. I have a royal blue saber that does have a slight blacklight effect to it.

FenixFire
06-29-2016, 06:53 PM
https://www.reviewofoptometry.com/ce/the-lowdown-on-blue-light-good-vs-bad-and-its-connection-to-amd-109744
http://www.lumileds.com/products/uv-leds

Jacobpac
06-29-2016, 06:54 PM
I think I had in mind something similar to a black light.

Silver Serpent
06-29-2016, 06:59 PM
Sabers have been built with the "safer" UV LEDs. The results are less than impressive. Very dim, poor diffusion. It does not turn your room into a rave club.

If you want to light up something fluorescent, try the blue (or royal blue) with the Photon blades.

Jacobpac
06-29-2016, 07:12 PM
my son had a hey dad moment "what if you built a halo sword?!"

The first idea I had was something UV "safe" that would light up some metallic edge painted with a color that would flouresce.. I thought it was highly likely that someone might have tried it.

FenixFire
06-29-2016, 09:34 PM
You mean like this.
http://www.ndeg.com/#!about/cjg9
14172 (http://www.ndeg.com/#!about/cjg9)

FenixFire
06-29-2016, 09:40 PM
my son had a hey dad moment "what if you built a halo sword?!"

The first idea I had was something UV "safe" that would light up some metallic edge painted with a color that would flouresce.. I thought it was highly likely that someone might have tried it.

I would not use metal, too heavy and dangerous. Nth light flexograph printed led sandwiched between frosted or phosphorescent coated polycarbonate cut to shape would be better and obviously has been done. I have an nth light development kit in my office. Amazing little things, but power hungry as could be. There are also electroluminescent inks that have been used on some limited addition Budwieser and Bud Lite packaging and bottles that I have designed in the last couple of years. The ink tech is improving and price is coming down, not bright but will give a glow.

Commercial ink by DuPont
http://www.dupont.com/content/dam/dupont/products-and-services/electronic-and-electrical-materials/documents/prodlib/MCM-EL-Processing-Guide.pdf

http://www.gwent.org/gem_data_sheets/polymer_systems_products/electroluminescent_display_materials/electroluminescent_brochure.pdf

Video
http://gizmodo.com/this-silk-screened-art-glows-with-electroluminescent-in-589610692

Process:
https://youtu.be/ZesXSJ0inBg

Jacobpac
07-04-2016, 04:57 PM
Dang! That's cool. exactly, but looks better the way you have done it!

Thanks for all the input!