Red infrared light on why??? (red dot)

Discussion in 'Android General Discussions' started by rage813, Dec 6, 2010.

  1. rage813

    rage813 Member

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    the red infrared light on the top left of the phone where there is those two little sensor holes you can barely see. in the right sensor hole the tiny red light just randomly went on on my girlfriends droid pro shes had it for two weeks and it just went on today. it is a dim red light it also happened to my droid 2 global after having it for a week after a couple hours i reset my phone because i got annoyed and it went away but it isnt that noticable im just really anal. it doesnt effect the phones performance from what i can tell nothing is different but why did it go on all of a sudden? one of the sensors is for face detection i think thats the one on the left and i think the one on the right is for autobrightness detection. she doesnt use autobrightness. does anyone know why the light is on?? please help
     
  2. rage813

    rage813 Member

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    bump anyone??
     
  3. JohnnytheK

    JohnnytheK Senior Member

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    Well if the light was infrared you couldn't see it so I wouldn't worry about it.:)

    If you mean the orange/red LED then I think that's a system notification, low battery, or low memory.
     
  4. jstafford1

    jstafford1 Super Moderator
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    Red led usually means low battery. Make sure there's no notifications in your top bar. Just to see if its a notification reminder for something else. Also go to settings: about phone: system updates. Might be getting an OTA.

    Sent from somewhere...
     
  5. rage813

    rage813 Member

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    No dude its not the led light its one of the sensors on the top left


    Sent from my DROID2 GLOBAL using DroidForums App
     
  6. rage813

    rage813 Member

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    Bump

    Sent from my DROID2 GLOBAL using DroidForums App
     
  7. rage813

    rage813 Member

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    Bumpppp

    Sent from my DROID2 GLOBAL using DroidForums App
     
  8. joker402

    joker402 Member

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    pics might help instead of bumping. Im with everyone on it being an LED light but pics can clarify.
     
  9. CBLaVey

    CBLaVey New Member

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    The flashing red light you are referring to is the infrared light from your proximity sensor. The light emits an infrared beam which is read by the sensor next to it. It does not mean anything. That is just how it works.
     
    #9 CBLaVey, Dec 16, 2010
    Last edited: Dec 16, 2010
  10. dezymond

    dezymond Tech Support Mod
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    you shouldn't be able to see the infrared light.....
     
  11. CBLaVey

    CBLaVey New Member

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    It is all about physics. IR is a specific range of freqs, though it is true that it has a "fuzzy border" with visible light. You're seeing the tail in the near-IR. Its just a sub-harmonic frequency generated by the non-linear characteristic of a diode, and it just happens to fall in the border of visible light. Which is why you can see the flash, but not the beam.
     
  12. dezymond

    dezymond Tech Support Mod
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    learn something new everyday, thanks!
     
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