Is that a front facing camera? Next to the speaker it seems that there is a camera there yet the US version of this phone claims to have removed it. So what is that thing?
Ambient light sensor and proximity sensor
blader3759 said:
Ambient light sensor and proximity sensor
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Ohhh, nice. Thanks for the quick answer.
The carriage for the ffc is in the upper right corner actually. There is a blank space in the frame that one can be installed in, (check the developement thread or search for ffc mod, its possible) its an involved process, where you do get to know your phone very intimately.
Ginger Clone's of the World Unite! Via the XDA App
they totally couldve put an LED indicator there instead.. i rather have that than an ambient light sensor
anthonys2r said:
they totally couldve put an LED indicator there instead.. i rather have that than an ambient light sensor
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When I first got the phone I noticed that thing in the upper left and initially thought it was a LED indicator. I totally agree that it should have been.
What is this for? I can't even figure out why it comes on exactly. It's not coming on as a notification light, not when docked with zune, seems like it only comes on sometimes when I plug in. It's around one of the sensors, and it's just bugging me that I can't figure out what it's for.
When you plug in what?
My charger, but I can't be certain. I know I've seen it light up, a red circle around the round sensor, but it's rare and random. No big deal, just curious ya' know?
Sent from my HTC Liberty using XDA App
Around what sensor
I haven't see any lights in my focus. Can you take a picture?
I think you are talking about the proximity sensor
yeah I believe it's the proximity sensor. It's whatever one is closest to the speaker. I can try to take a picture, I just don't know exactly what triggers it so it'll be kinda hard. It's a ring around the sensor, lights up red. I was really hoping it was a notification light, but alas, MS did not give us one.
Ricparr said:
yeah I believe it's the proximity sensor. It's whatever one is closest to the speaker. I can try to take a picture, I just don't know exactly what triggers it so it'll be kinda hard. It's a ring around the sensor, lights up red. I was really hoping it was a notification light, but alas, MS did not give us one.
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Ha ha...too funny. We have all been lobbying for years to have LED's taken off of phones as battery drains and sure enough once somebody does, the complaints come in "Where is my red LED?"
I suppose that the only option is to make the phones with the LED's and then have a setting to turn LED notifications off. Those never seem to really work though.
Paolo01 said:
Ha ha...too funny. We have all been lobbying for years to have LED's taken off of phones as battery drains and sure enough once somebody does, the complaints come in "Where is my red LED?"
I suppose that the only option is to make the phones with the LED's and then have a setting to turn LED notifications off. Those never seem to really work though.
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now that you mention it....back in my nextel days, I sure hated that little blinking light. Especially at night in the car. hmmmmmmm...
Just experienced this weird thing so.wanted to let you guys know.
I am sure many of u will be using countless torch and heart rate monitor apps out there.
Today I was using heart rate monitor app for first time on this phone and the damn thing got so hot so quickly that out almost burned my finger tip after just 20 odd seconds.
Expecting something.might be wrong with the app, I started torch app, and same thing. It got hot.enough.to cause burn.
So just a friendly advice, dont use it for long period. Its getting too hot for my.comfort to even use it as video flash or torch for more than few seconds
Sent magically from Samsung Galaxy S 2.
tried "flashlight" and did not experienced the problems you mentioned. switched the LED on for 30secs, after that the LED wasn't even warm...
I just ran a flashlight app for a good few minutes didn't even get remotely warm. Was just as cool as it was without running the LED. So no issues (bar accidently blinding myself, christ that things bright)
Its more severe with heart rate monitor apps when your finger needs to be touching LED and camera lens.
None of the phones before this caused any discomfort using this app. But you cant keep your finger next to the LED of this phone.
Try it even with torch app, put your finger steady on the led and wait for 30 seconds.
I didn't even know LEDs could cause that much heat
OP - yes this LED heats quite well especially when you cover it with your finger to prevent heat dissipating.
Guys who claim your LEDs do not heat up - "you are doing it wrong" , all LEDs heat up, it is a physical process. Your battery heats up too when being charged or discharged rapidly. Your Amoled screen heats up too. Electronics - no current will pass through it without heating it up. How much is another question.
Exactly, this one heats up lot more when you cover it for apps like heart rate monitor compared to say DHD or Nexus S or any other phone I have used recently.
DHD will feel luke worm and stay that way regardless how long you use it.
This one gets toasty way too quickly.
You got it completely wrong, it's not a bug, it's a FEATURE. When you take the pulse of the unconscious person (surely after consulting the CPR app), the blistering heat of the phone LED will restart their heart!
2 FEATURES FOR THE PRICE OF ONE!
That's value if I ever saw it.
cigaro78 said:
You got it completely wrong, it's not a bug, it's a FEATURE. When you take the pulse of the unconscious person (surely after consulting the CPR app), the blistering heat of the phone LED will restart their heart!
2 FEATURES FOR THE PRICE OF ONE!
That's value if I ever saw it.
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You got it wrong. You measure your heart rate, make sure you are still healthy, and then light up a cigarette with the LED lens.
What app is it to turn the led on ?
and there i was thinking i was the only one who couldn't handle the heat using the heart rate monitor apps, definitely gets much hotter than my desire ever did
eddie21 said:
What app is it to turn the led on ?
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There is many flashlight apps on the market. A light one I am using - Search Light
Also try out the Heart Rate Monitor mentioned by the OP in this thread - this is the app where you hold your finger to the camera covering the LED light.
Have you thought about sending the Dev of the heart-rate app a request for them to add a bit of functionalitly to adjust the light output of the LED ?
I suspect that the LED is a much, much higher rater Lumen output unit compared to all other phones. This provides all of us with better 'flashes' when taking photos. The heart rate monitor apps will not need all that light to just shine into the skin to detect the color changes as blood pulses through the capilaries. I bet you that the heart-rate monitor app developers never considered that they'd have an LED that bright to use. So a simple way to fix it would be to have a setting in the app that you adjust to get the LED only as bright as absolutely necessary. You then save the setting, and from then on the app only turns the LED on to that brightness. This would then stop the LED from heating up so quickly.
The only flaw in my above plan / suggestion is that I don't know if the LED brightness can be adjusted.
mduncan2 said:
Have you thought about sending the Dev of the heart-rate app a request for them to add a bit of functionalitly to adjust the light output of the LED ?
I suspect that the LED is a much, much higher rater Lumen output unit compared to all other phones. This provides all of us with better 'flashes' when taking photos. The heart rate monitor apps will not need all that light to just shine into the skin to detect the color changes as blood pulses through the capilaries. I bet you that the heart-rate monitor app developers never considered that they'd have an LED that bright to use. So a simple way to fix it would be to have a setting in the app that you adjust to get the LED only as bright as absolutely necessary. You then save the setting, and from then on the app only turns the LED on to that brightness. This would then stop the LED from heating up so quickly.
The only flaw in my above plan / suggestion is that I don't know if the LED brightness can be adjusted.
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This is a good idea, bu I bet hard to implement. Agree on your last point. According to comments on that particular app that I linked above, the dev has problems switching ON the LED on the huge number of Androphones out there. Every phone would have a proprietary LED with its own driver, and I am guessing limited Android API directly for the LED? I am not a dev though , can't speak to this with authority.
turned on the led with flashlight app but after 2min i got bored. Im not sure if the led warmed up or my bodyheat warmed up the led but in any case it was still far far from hot.
Covering a bright light source with your fingertip generates heat? You don't say!
Come on guys, where do you think all the light energy goes to if it can't escape your finger? Conservation of energy, anyone? First law of thermodynamics?
Not getting hot when o use it either
Sent from my GT-I9100 using Tapatalk
mchimney said:
I didn't even know LEDs could cause that much heat
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Some of the higher power LEDs require heat sinks.
Madrenergic said:
Covering a bright light source with your fingertip generates heat? You don't say!
Come on guys, where do you think all the light energy goes to if it can't escape your finger? Conservation of energy, anyone? First law of thermodynamics?
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Light energy need not always be converted to heat energy.
the blood circulation actually helps to take heat away from the hot spot.
This is first phone that can actually harm you if you do not move your finger. Human finger is not a solid passive body, so just imagine how much infra red energy this source is putting out.
The aim of this thread was to make people aware of it. Imagine what can happen if you left torch on and kept it on table facing down.
My last 2 phones DHD and Nexus S comes nowhere near this.
But gotta say that heart rate app works best on sgs2 due to this. You can actually see the light pulsating with your heart beat.
Sent magically from Samsung Galaxy S 2.
Out of curiosity downloaded the app (Instant Heart Rate - Free) and tried it.
I thought the app was some novelty crap but it really does seem to work .
Held my finger to the LED/Camera for almost 3 minutes, got slightly warm but nowhere near uncomfortable.
Does anyone else glance at the phone and think the front facing camera is a dim blue led?
Nothing I can do about this, but I just wanted to know if this has been bothering anyone else.
That and with the always on screen, I keep thinking I'm the worlds most popular guy today but really no one is texting me... haha
I think it's just going to take some getting used to...
I think it might be the iris sensor. It's an IR sensor so has visible light filter that I've heard reflects blue and can look like a blue LED.
Have any of you noticed a red light to the right of the speaker when in sunlight? When in direct sunlight you can clearly see it but when you get into a darker place it's not noticeable anymore.
I think it's just the ambient light sensor but I just wanted to make sure nothing is bad on my end.
It's probably a reflection of the light sensor as you said, but you're under some goddamn strong sun to be able to see that, remember to use sunlight filters XD
I'm pretty sure it's ambient light sensor, probably you should try calling someone and see if it lights up at the same place where you see it
Used an app called "Proximity Sensor Test" which tells you when the sensor detects something which confirmed it is a proximity sensor. RMN 7 has a Sensortek brand and they have proximity sensors with ambient light sensor combined so I'm pretty sure it's both.