How to Test UV LEDs

16,588

9

2

Introduction: How to Test UV LEDs

About: I'm passionate about combining engineering and sustainability through DIY technology. I'm a mechanical engineering student at Olin College and currently building things at TechShop in San Francisco as an inter…
Ultraviolet LEDs produce ultraviolet light which your eye can't see.  This is how I tested to make sure that the  UV LEDs I bought were working correctly.

Here's what you need:
  • Your UV LED
  • A DC Power supply or appropriate battery
  • Transitions glasses (Photochromatic Glass)

Step 1:

Transitions lenses use a special photochromatic coating that responds to Ultraviolet radiation.  The stronger the UV radiation the darker the lenses become.  I have a pair of photochromatic glasses so I used them to test out my LEDs.
  • Just put your glasses in front of your LEDs.
  • Turn the LEDs on by plugging them in.
  • Wait a minute or 2 with the LEDs on.  It's best not to look at them without eye protection.
  • See if the glasses change color.
That's it!
LED Contest with Elemental LED

Participated in the
LED Contest with Elemental LED

Be the First to Share

    Recommendations

    • Make it Glow Contest

      Make it Glow Contest
    • First Time Author Contest

      First Time Author Contest
    • PCB Challenge

      PCB Challenge

    2 Discussions

    0
    schumi23
    schumi23

    8 years ago on Introduction

    Another (simpler) way is to put a yellow highlighter in front of them - it will glow.

    1
    m.m.m
    m.m.m

    Reply 5 years ago on Introduction

    Yeah, That worked like a charm. Thanks.

    also it has to be a fluorescent highlighter.