UV gurus - a little help, please.

13 posts / 0 new
Last post
Chicago X
Chicago X's picture
Offline
Last seen: 6 years 4 months ago
Joined: 07/22/2011 - 16:13
Posts: 4013
Location: See Name
UV gurus - a little help, please.

Hi folks,

I have a UV drop-in of unknown pedigree, and it generated quite a bit of interest at the local gun shop.

I use it to charge up glow-in-the-dark fishing lures as well, and it works fairly well, but I think it could do better – a neutral Xeno does the job in less time.

Could the folks with more UV LED experience please chime in to suggest the correct wavelength needed for GITD charging, as well as fluorescing the appropriate materials with the least visible light output ?

Thanks !!!

http://wardogsmakingithome.org/index.html

War Dogs, Making it Home - Rescue Dogs for Returning Vets

gcbryan
Offline
Last seen: 4 months 3 weeks ago
Joined: 05/07/2010 - 20:42
Posts: 2541
Location: Seattle,WA

I think my Photo mini UV light is 370nm. This works with the strips in money. It has very little visible light.

Blacklights are closer to 400 nm or so I think and are mostly visible of course.

kramer5150
kramer5150's picture
Offline
Last seen: 7 months 1 week ago
Joined: 05/19/2010 - 13:43
Posts: 2109
Location: Palo Alto CA

Lower wavelengths work best for money and ID inspection work, but I have found they do very little for just glowing stuff around the house. I used a low nm Arc-AAA once to try and glow-charge my watch lume and to my surprise it didn’t really do anything. I have found the cheapy UV showerhead lights on Amazon and other places work best for this… glow charging stuff. Most don’t even advertise a specific wavelength.

gcbryan
Offline
Last seen: 4 months 3 weeks ago
Joined: 05/07/2010 - 20:42
Posts: 2541
Location: Seattle,WA

As Kramer mentions the more visible end of the range does more for most fluorescing other than specific items so when you say you want the least visible light you are at cross purposes basically.

My UV light fluoresces is than my larger plug-in blacklight which triggers laundry detergent, paper and tennis balls like crazy.

Mr_Krabs
Offline
Last seen: 5 years 5 months ago
Joined: 07/14/2012 - 17:47
Posts: 231

I have a custom modded Uniqufire X8 with a 365nm LedEngin led with wood’s glass filter. Absolutely no visible light emission, and I gotta say besides engineering inspection (which I originally built it for) and money/id use it isn’t actually good for much else, maybe mineral fluorescing. But for charging GITD items my best is my P60 UV led module in a host. It’s direct drive and runs 600 mA with a fully charged 18650. It’s one of those generic UV modules, probably a 405nm unit.

Langcjl
Langcjl's picture
Offline
Last seen: 1 year 7 months ago
Joined: 03/05/2011 - 05:36
Posts: 2162
Location: Wisconsin USA

I use one of the cheap blue lasers. They charge up GITD stuff instantly.

Piers said " ....but who wants enough light, when you have the option for far too much "

Langcjl
Langcjl's picture
Offline
Last seen: 1 year 7 months ago
Joined: 03/05/2011 - 05:36
Posts: 2162
Location: Wisconsin USA

Piers said " ....but who wants enough light, when you have the option for far too much "

scaru
scaru's picture
Offline
Last seen: 2 years 11 months ago
Joined: 03/22/2012 - 13:36
Posts: 6946
Location: Virginia

Langcjl wrote:

http://www.youtube.com/watch?v=duklO3TsbhA

Wow! That is cool. 

Yellowhorse
Yellowhorse's picture
Offline
Last seen: 4 years 4 months ago
Joined: 11/26/2011 - 19:16
Posts: 432
Location: Deepest Darkest West Virginia

It depends a lot on what material they are using to make the GITD objects but 405nm wavelength lights seem to work best on most stuff.
I have a few GITD o-rings on some of my lights and I can make them glow by exposing them to almost any kind visible light. Kinda like the markers in my watch. Almost anything works.

Rufusbduck
Rufusbduck's picture
Offline
Last seen: 8 months 6 days ago
Joined: 04/04/2012 - 15:34
Posts: 10389
Location: Golden state

How about a cap/enclosure for your bezel? Slip in the lure, cover, and fish with just your edc.

Three Tanna leaves to give him life, nine to give him movement. But what if he eats the whole bag?

Scott

2100
Offline
Last seen: 1 year 1 week ago
Joined: 05/28/2011 - 10:28
Posts: 4512
Location: SINGAPORE

405nm is great. And the device that produces the most of that (and most efficiently) is 405nm lasers. (from blu-rays). It will trash any UV based LED flashlight, no doubt. Charges GITD like there is no tomorrow. Just a 0.5seconds flash is good. Reason is that there is a whole lot more output from a cheap 200mW 405nm laser (that’s optical output rated) than a 3W rated LED 405nm LED. (that’s so-called electrically rated)

Can get some from o-like or lazerer.

They say lazerer is good.

Oh…you are in the USA. Check out survival lasers, laserpointer forums. It can get through …coz it is in parts like any other hobby parts so it’s not considered a laser, and just takes 15 mins to assemble. Overseas is an issue.

405nm 400mW laser, lens taken out so it spreads out more.

2100
Offline
Last seen: 1 year 1 week ago
Joined: 05/28/2011 - 10:28
Posts: 4512
Location: SINGAPORE

You want to sell to the gun guys? 405nm is pretty dangerous a wavelength. So you migth not want to go too high up there in the power even with a diffused laser coherent light.

2100
Offline
Last seen: 1 year 1 week ago
Joined: 05/28/2011 - 10:28
Posts: 4512
Location: SINGAPORE

Ok.,….just a comparison, i have the Tank007 3W 365nm UV LED. The output/flurorescence of this thing pales in output of the 400mW 405nm laser. At least in the order of 20X or perhaps even more.

I have the bigger brother of this. hkequipment has a good price compared to aliexpress.

http://www.hkequipment.net/?sp=&p=6&cat2=107&cat1=50&cat0=1&id=1434&cat1...