ok then, awesome
good luck with your new project
Thanks - I did do a little more research, after your post, as I wouldn’t want to encourage anyone to do anything potentially dangerous. And thought I’d share my findings
UV in a frequency of under 200nm is used for tanning and disinfection and prolonged exposure over a number of years can cause skin cancers.
UV in a frequency on 300-400 is generally considered safe as it is not strong enough to damage DNA.
Anything over 400 is visible light.
But that said you shouldn’t look directly at any high powered light source. The sun, a high powered led, down the barrel of a lightsaber.
The led i used is a single cree chip, in the 395nm range and operated at 3.8v it’s similar to type that are used in base lit light sabers.
It wouldn’t hurt to wear eye protection (sun glasses) before diffusing it with a lens, if you’ve not used to using these type of leds before, they are very bright. Looking directly at them will make you see spots for a little while.
When I was testing to see if it was wired up I just pointed it away from me, so I was looking at the reflection of the light against the wall and not directly at the chip. Realised this is 2nd nature, so it’s something I should have pointed out in my earlier posts, incase anyone is thinking of trying this out themselves.
Thanks for posting and reminding me to not take mine or anyone else’s safety for granted. When you are used to working with something you get nonchalant to the risks and assume others have the same knowledge or experience, which again isn’t always the case and shouldn’t be taken as granted.
Apologies for not saying this sooner.