miniature UV flashlight powered by smartphone

Garuspik

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Aug 28, 2019
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Hello, I'm a newbie on this forum. So first of all let me briefly introduce myself - i'm a ukrainian DIY hobbyist and while my main interest is audio (see my signature) I'd like to build a bit unusual UV flashlight.
From time to time I need UV flashlight. It should be very small, even smaller then usual keychain flashlight yet much more powerful then something like nitecore tube UV (this toy has usable range of 2 inches lol).
So I've decided to build a small uv flashlight without battery inside and use a smartphone as a power source. Please take a look what I've built:

mxCrgWV.jpg

And attached to smartphone:
2CSsztc.jpg

Small animations to show what this flashlight is capable of:
99e705bc8bf7e5291caa02d27ab49a23_original.gif

b9e0b5b8cdf60bcc1af9c495d39de364_original.gif

What do you think about such idea and it's implementation?
Any suggestions?
 

Garuspik

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Aug 28, 2019
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Brief explanation why everyone who want to keep his house clean need UV flashlight. Everything is recorded with smartphone\ smartphone with attached flashlight.
 

Garuspik

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Aug 28, 2019
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They make a regular led like this? Cool concept.

Who "they"? I've used factory led of course. Everything is assembled by me - 3d printed case, laser cut faceplate and the most complex thing - special controller to receive current from smartphone.
 

alpg88

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Joined
Apr 19, 2005
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5,395
are you building it for future mass production\sales, or you just build 1 for yourself? it looks pretty neat,
 

Garuspik

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are you building it for future mass production\sales, or you just build 1 for yourself? it looks pretty neat,

Everything I build - I build for myself. But then... sometimes it's worthy mass production ;) Not very often ;(
 
Last edited:

thermal guy

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Jan 28, 2007
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ny
I didn't read your post correctly. I thought you found this for sale and bought it. Nice job.
 

archimedes

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Hello, I'm a newbie on this forum. So first of all let me briefly introduce myself - i'm a ukrainian DIY hobbyist .... So I've decided to build a small uv flashlight without battery inside and use a smartphone as a power source.... What do you think about such idea and it's implementation?

:welcome:

I have moved your thread to "Homemade & Modified" subforum.

If you would like to share further details of this build, many of us here on CPF would be very interested in that.
 

Garuspik

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Aug 28, 2019
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:welcome:

I have moved your thread to "Homemade & Modified" subforum.

If you would like to share further details of this build, many of us here on CPF would be very interested in that.

Sorry that I've chosen wrong sub-forum. A newbie mistake.
I'm open to any discussion and can answer any questions.
 
Joined
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Messages
746
Could you share more info on the UV emitter you're using? Wavelength, power? I like the concept, I'd like to support your Kickstarter campaign, just wanted to know more about the LED.
Thanks:)
 

Garuspik

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Aug 28, 2019
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Could you share more info on the UV emitter you're using? Wavelength, power? I like the concept, I'd like to support your Kickstarter campaign, just wanted to know more about the LED.
Thanks:)

Hi. As it's said on project page it's lite-on 365 nm led. It's rated 3w but sure it's run at much lower rating. About 400 mW.
 
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