Author Topic: IR LED - Does it have to emit a light?  (Read 6930 times)

Offline gmac

  • *
  • Posts: 4
  • Karma: +0/-0
    • View Profile
on: February 21, 2008, 05:17:35 PM
Hi All, I have been having difficulty finding a seller here in Toronto who sells IR LED's.  I built one pen but it only has 50 m/a.  It's not very bright at all.  I found another guy who sold me some IR LED's, BUT they don't glow.  He told me it will still work for what I need it to..so my question....does the IR LED HAVE to emit light?   



Offline Hopka

  • *
  • Posts: 8
  • Karma: +0/-0
    • View Profile
    • Blog (German)
Reply #1 on: February 21, 2008, 05:22:49 PM
Yes, it has to emit light. But it's OK if it only emits infrared light. And you cannot see infrared light with your bare eyes. You can however use a digital camera or a webcam to check if the LEDs are on since such cameras capture infrared light.



Offline gmac

  • *
  • Posts: 4
  • Karma: +0/-0
    • View Profile
Reply #2 on: February 21, 2008, 05:25:56 PM
Okay....so the IR LED's I bought today, 940n/ma I think, should work with the Wii remote, even though I cannot see the IR?



Offline TheBlackCat

  • *
  • Posts: 3
  • Karma: +0/-0
    • View Profile
Reply #3 on: February 21, 2008, 06:05:47 PM
Exactly.  In fact if you can see it then it most almost certainly won't work.