Proximity Sensor?

Discussion in 'iPhone' started by Beans48, Jun 14, 2010.

  1. Beans48

    Beans48 New Member

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    This keeps popping up in the keynote, on here etc...
    But what is it?
    Does it know when human life gets near it and suddenly turns off it's world domination plan!?
  2. iPod.Touch

    iPod.Touch Active Member

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    Close. An example of when it would be used is when you take a phone call and you pull iPhone up to your face, the proximity sensor recognises that something it coming close to it and it turns off the display so you don't push all the buttons while you talk.

    When you take it away from your face, the screen turns back on.
  3. Oliver Barker

    Oliver Barker New Member

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    ^^ Correct ^^

    Its amazingly useful, my dads old phone, a P910i can you believe it doesn't have one and he keeps ending the call and other things when he has it by his ear.
  4. Beans48

    Beans48 New Member

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    Could it be used for anything else?
    And how exactly does it work does anybody know? Light and sound sensors or something?
  5. ZhiZhi778

    ZhiZhi778 Member

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    look at your iPhones surface:
    2 little holes for the proximity sensor (and a third one for light sensor).

    the proximity sensor is sending out an infrared wave from the first hole and if this wave gets reflected (by materials that do reflect it like human skin) and the reflected wave enters the second hole the sensor knows that something is coming near.

    the sensor can be de-/activated by software so it is not always on. the sensor is used for some apps - I saw some but didn't remeber what they do with the sensor - usually phone-apps do use it.

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