Galaxy SIII screen question

[flibberdipper]

I have a question about my Galaxy SIII's screen. How does it know when to turn off, like when you're in a phone call somebody? Does it use some kind of infrared sensor with some kind of red indicator, or some kind of laser? Just curious.

[Theguywhobea]

I have a question about my Galaxy SIII's screen. How does it know when to turn off, like when you're in a phone call somebody? Does it use some kind of infrared sensor with some kind of red indicator, or some kind of laser? Just curious.

There is a proximity sensor built into the screen. Essentially its IR that looks for a reflection and it times how long it takes, if it takes a very short amount of time (essentially nothing) it knows something is right next to it.

[flibberdipper]

There is a proximity sensor built into the screen. Essentially its IR that looks for a reflection and it times how long it takes, if it takes a very short amount of time (essentially nothing) it knows something is right next to it.

Is it like barely IR "category?" Reason being is that I can see the freaking thing. It's not insanely bright, but I can definitely see it...

[Goodman2265]

IR Sensor next to camera, if you look hard enough you see a black thing hidden next camera under glass

[QueenDemetria]

I have a question about my Galaxy SIII's screen. How does it know when to turn off, like when you're in a phone call somebody? Does it use some kind of infrared sensor with some kind of red indicator, or some kind of laser? Just curious.

Proximity sensor, the two dots next to the camera. One is a infared emitter, and the other is a receiver. If you download CPU-Z and go to the sensors tab, you can see the CM36651 proximity sensor and its reading(mine only says 8CM and 0CM, these sensors aren't accurate at all... on most devices).

[QueenDemetria]

Is it like barely IR "category?" Reason being is that I can see the freaking thing. It's not insanely bright, but I can definitely see it...

Infared is very close to red on the light spectrum, since these LED's are made on the cheap they aren't entirely accurate, thus showing red that us pleb humans can see.

[flibberdipper]

IR Sensor next to camera, if you look hard enough you see a black thing hidden next camera under glass

I don't really have too look. I mean, it's literally (right to left) camera, light sensor (maybe), IR (apparently), and then LED.

 

Proximity sensor, the two dots next to the camera. One is a infared emitter, and the other is a receiver. If you download CPU-Z and go to the sensors tab, you can see the CM36651 proximity sensor and its reading(mine only says 8CM and 0CM, these sensors aren't accurate at all... on most devices).

But how in the hell am I able to see the IR emitter?

[QueenDemetria]

But how in the hell am I able to see the IR emitter?

I ninja'd ya My post is above.

[flibberdipper]

Infared is very close to red on the light spectrum, since these LED's are made on the cheap they aren't entirely accurate, thus showing red that us pleb humans can see.

 

Huh. Just noticed this, but apparently the one used on my main phone (a cheapass budget phone from Samsung) must be better since it's a bit harder to see it.

[Theguywhobea]

Huh. Just noticed this, but apparently the one used on my main phone (a cheapass budget phone from Samsung) must be better since it's a bit harder to see it.

I can see it as well on my Droid Turbo, its just that most of the light that is emitted IS infrared, just some is in the visible spectrum. Just like that chart says.

[QueenDemetria]

Huh. Just noticed this, but apparently the one used on my main phone (a cheapass budget phone from Samsung) must be better since it's a bit harder to see it.

Theres actually a ton of factors that come into play, LED quality/type/etc., yours eyesight(which can change rapidly as "the dress" showed us), and the light surrounding you(this one is huge). (I can sometimes see it on my GS3, but I really notice it on my Lumia 925, specially at night).

 

Physics are cool, sometimes they suck, but they are cool.

[flibberdipper]

Theres actually a ton of factors that come into play, LED quality/type/etc., yours eyesight(which can change rapidly as "the dress" showed us), and the light surrounding you(this one is huge). (I can sometimes see it on my GS3, but I really notice it on my Lumia 925, specially at night).

 

Physics are cool, sometimes they suck, but they are cool.

Eh, true. But still: It no make no sense.