Database Users

front camera on htc hd 2

i see in fron of my htc hd2 in left side two small lens is that a fron camera.

No. It's not.

alibox87 said:
i see in fron of my htc hd2 in left side two small lens is that a fron camera.
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Click to collapse
One is a proximity sensor (turns off the screen when it's up against your face during a call) and the other is a light sensor (for the backlight's auto-dimming function)

its how the gov't is tracking you.
actually i'm glad as all the other phones get front face cameras i won't have one, no one needs to see my ugly mug.

Lol awesome first post!

it is an eyescanner? or a whole to feed the pink elephants?

I have some Risperidone for you...

Front cameras will be the cause for many divorces or split-ups...

secano said:
Front cameras will be the cause for many divorces or split-ups...
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Actually with any luck front cameras will prevent many people from getting together in the first place

dont think its coming to this country but the rest of the world uses it, at one point last year we were headed in that direction but the minmo7 devices turned it down unless the companies are still waitin to unleash the devices but the network can handel the data

sirphunkee said:
One is a proximity sensor (turns off the screen when it's up against your face during a call) and the other is a light sensor (for the backlight's auto-dimming function)
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Click to collapse
If you want to get real technical about it, one of the holes is a light sensor that is sensitive to daylight for backlight brightness control and IR for proximity sensing, the other hole is an IR led that turns on during a phone call. When you hold the phone next to your face the IR led bounces off your skin and back into the 1st hole telling the HD2 that you have it near your face.
Try this, initiate a cell call on the HD2, then hold a video camera over those 2 holes. you'll see the IR LED lit up. It only lights during a cell call. Even better if you have a sony camcorder with nightshot mode activated, though just about every CCD/CMOS sensor is sensitive enough to IR even with the internal IR filter in place that you should be able to see it
Im going to take a guess that the IR led isn't just constantly lit, but likely pulse width modulated to some frequency the HD2 recognizes that way the light sensor can tell the difference between the IR bounce back and ambient light. I couldn't tell with my camera that it was PWM, but it could quite likely be at a frequency greater than 30hz, which you wouldn't be able to see on a standard video camera at 30fps. you'd need a high speed camera, or another IR sensitive photo diode attached to an oscilloscope.

d0ug said:
If you want to get real technical about it, one of the holes is a light sensor that is sensitive to daylight for backlight brightness control and IR for proximity sensing, the other hole is an IR led that turns on during a phone call. When you hold the phone next to your face the IR led bounces off your skin and back into the 1st hole telling the HD2 that you have it near your face.
Try this, initiate a cell call on the HD2, then hold a video camera over those 2 holes. you'll see the IR LED lit up. It only lights during a cell call. im going to take a guess that the IR led isnt just constantly lit, but likely pulse width modulated to some frequency the HD2 recognizes that way the light sensor can tell the difference between the IR bounce back and ambient light.
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Awesome, thank you for the white paper I love that kind of stuff!

If it is quite dark, you can see the LED blink about once a second...

Heyy all,
Actually the guy was asking if that's a FRON camera. Yes it is!!!

chvvkumar said:
If it is quite dark, you can see the LED blink about once a second...
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Click to collapse
I think you're looking at the notification led on the far left of the earpiece speaker grille. I highly doubt you can see the IR LED with your naked eyes. Were talking about the two dots under the glass just to the left of that.
matyoka said:
Actually the guy was asking if that's a FRON camera. Yes it is!!!
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Click to collapse
That sensor is not a front camera. its a photodiode http://en.wikipedia.org/wiki/Photodiode i guess you could call it a 1 pixel camera lol

d0ug said:
I think you're looking at the notification led on the far left of the earpiece speaker grille. I highly doubt you can see the IR LED with your naked eyes. Were talking about the two dots under the glass just to the left of that.
That sensor is not a front camera. its a photodiode http://en.wikipedia.org/wiki/Photodiode i guess you could call it a 1 pixel camera lol
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Click to collapse
Believe me i can tell if it is an LED otherwise I wouldn't be doing my masters in electronics
and to answer your question, it definitely not the notification LED or the light bleeding from it into the adjacent space. when a call is in progress and it is very dark around, you can just make out the faint blinking.

alibox87 said:
i see in fron of my htc hd2 in left side two small lens is that a fron camera.
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Click to collapse
Wait for HD3 to solve the problem just for you

3 things to the left of the speaker... What is 3rd?

So I've always just accepted there was no lcd notification light.
Today I looked really close and I'm seeing 3 items. From left to right:
1. Proximity sensor (which works really well)
2. WHAT IS THIS?
2. Ambient light sensor
Or are two things used for one function?

1. Proximity sensor
2. Proximity sensor
3. Ambient light sensor.
A proximity sensor is two parts: an infra-red transmitter and a receiver. It measures the amount of light that bounces back to determine how close your face is.
Sent from my SGH-T959 using XDA App

Good to know, thanks.

Well, that was a short thread.
Sent from my SGH-T959 using XDA App

It doesn't look like a proximity sensor, it looks like a camera

Troll ....

I remember reading in a thread somewhere that the lights that are behind the soft keys are all individually lit (you can see it turns off the light of the key you push if you hold your phone sideways and look under your finger) and they were looking to create a code or app that will turn one of them into a notification light our a combination of them to specify different types of notifications.
wish I could remember if I even read it here or not.... Sounds like its doable and a viable alternative to an led, cept prob uses alot more battery

At least one of the three will light up. When I installed SIP Droid to connect to my VoIP server at the office, one of them lit up red as a connection error.

[Q] Ambient light sensor and backlight

According to the Leo/Linux status wiki (http://htc-linux.org/wiki/index.php?title=Leo/Status) the Ambient Light Sensor is still not working properly.
That would explain why auto backlight adjustment does not work.
However, when in the phone screen the light sensor seems to work in that the screen goes dark when I cover the light sensor, as expected.
So I am curious as to the status of this regarding auto backlight specifically, does anyone have any more concrete info?
Perhaps there are separate light sensors? Or perhaps the light sensor only works in a limited fashion for the time being?
Just curious, not complaining
(P.S. the free "Battery Level" widget from the Market has worked well for me in the absence of auto backlight adjustment, in case others find it useful)

well there's a proximity sensor on the phone that comes into play while you are in an active call. it disables the back as you put the phone to your ear. you were simply simulating that action by covering the sensor with your hand.

Ah ok! Thats what the proximity sensor is. That is indeed marked as working on the status wiki, so that makes sense.
Thanks!

proximity sensor red light

hello
my sgs2 have a problem he brings a light by my camera the proximity sensor.
and he brings red light what is this is this a wetness warning or what?
my olde sgs2 hes in the water falls. and i have a new sgs2. only he gives to red light in the sensor and he was wet.
is that the problem or what?

Ehh.. What?
Sent from my GT-I9100 using XDA Premium App

My sensor gives red light the proximity sensor. Sorry for my english. Id this normal?
Sent from my GT-I9100 using XDA App

He is saying his proximity sensor is red. Mine is red too. I think its normal. I can only see it when its dark though
Sent from my GT-I9100 using XDA App

Yep, very weak red light is normal. That's because it rather bright near infrared light.

Okay i can see i call and sometime when my phone is in standby have anyone this problem?
And when i test the sensor with AndroSensor than can i see rhe redlight. Some people says on a forum that the sensor cans see of the phone wet is with water...
Sent from my GT-I9100 using XDA App

rvosde1993 said:
hello
my sgs2 have a problem he brings a light by my camera the proximity sensor.
and he brings red light what is this is this a wetness warning or what?
my olde sgs2 hes in the water falls. and i have a new sgs2. only he gives to red light in the sensor and he was wet.
is that the problem or what?
Click to expand...
Click to collapse
when you are making call or sensor is activated somehow it' became red.
thats normal. dont panic.

It has nothing to do with water.

Okay. I will thank our now i can good sleep have a nice night or day!
Sent from my GT-I9100 with (Litening Rom 5.0) using XDA App

My proximity sensor will lit up the red light whenever I open up TalkBox app, I don't understand why as that app doesn't even use proximity sensor, maybe a bug or coding error in the program.

xsaintzx said:
My proximity sensor will lit up the red light whenever I open up TalkBox app, I don't understand why as that app doesn't even use proximity sensor, maybe a bug or coding error in the program.
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Click to collapse
Most probably .. contact the maker ..

rvosde1993 said:
hello
my sgs2 have a problem he brings a light by my camera the proximity sensor.
and he brings red light what is this is this a wetness warning or what?
my olde sgs2 hes in the water falls. and i have a new sgs2. only he gives to red light in the sensor and he was wet.
is that the problem or what?
Click to expand...
Click to collapse
i guess its a wetness sensor.. as i just experienced this issue some time back...
i had just taken a bath n my cell starting ringing, i went ahead n received the call without drying myself. As soon as i ended the call my screen went off, there was this red light coming out of one of the sensors, and the phone wasn't even switching on. I had to remove the batteries and place them back after which it started like normal.

xsaintzx said:
My proximity sensor will lit up the red light whenever I open up TalkBox app, I don't understand why as that app doesn't even use proximity sensor, maybe a bug or coding error in the program.
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Click to collapse
Talkbox uses the proximity sensor to determine how you are listening to your messages. If you hold the phone up to your ear then it will play the message through the earpiece. If you hold it away from your face then it will use the speaker.

karakemal said:
when you are making call or sensor is activated somehow it' became red.
thats normal. dont panic.
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thx bro. i almost freaked out wen it happened again. and then i noticed that it only turns red wen m making a call ^_^

I have a problem with my proximity sensor too...
whenever im playing games/smsing/browsing with the phone...pretty much anything...
the red light is up...the only time its off is when lock...i used lcd test...it works fine(except ppl's proximity is 'null'...mine was '0')...anyone had this type of problem?
thx...=)

xWishx said:
I have a problem with my proximity sensor too...
whenever im playing games/smsing/browsing with the phone...pretty much anything...
the red light is up...the only time its off is when lock...i used lcd test...it works fine(except ppl's proximity is 'null'...mine was '0')...anyone had this type of problem?
thx...=)
Click to expand...
Click to collapse
null = 0 -.-

then any idea why is my proximity sensor light always on?i don think its normal...=)

xWishx said:
then any idea why is my proximity sensor light always on?i don think its normal...=)
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Click to collapse
It may be a bug or something... Did you try updating your phone, or flashing a new stock/custom ROM to see if the problem remains ?

Proximity sensor which is located beside the front facing camera will always be activated whenever you're in a call. It's slightly red in colour, and more noticable in a dark room. To see the proximity sensor in action you can go to the phone dialer and key in *#0*# and it will bring up the LCD test. Select sensor and you can see the red light of the proximity sensor being lit up. Hover your finger or an object over the proximity sensor (need not to be covering the sensor) and the phone will vibrate and so will the background change to green.

SGS-II said:
Proximity sensor which is located beside the front facing camera will always be activated whenever you're in a call. It's slightly red in colour, and more noticable in a dark room. To see the proximity sensor in action you can go to the phone dialer and key in *#0*# and it will bring up the LCD test. Select sensor and you can see the red light of the proximity sensor being lit up. Hover your finger or an object over the proximity sensor (need not to be covering the sensor) and the phone will vibrate and so will the background change to green.
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Click to collapse
Lol at you... Did you even bother reading the first page of the thread ? Guess not, since you're just repeating what we already told the guy

[Q] Ambient light sensor not present?

Just as the title says-
I am not able to locate the light ambient sensor on my A500 tab- My previous A500 got replaced by acer because the speakers were defective in some way-
I have read that the light sensor is located below the volume rocker and rotation switch on the black glass and can be seen under bright light- i tried every way to find it no success.
I tried "proximityscreenoff" and "sensorlist" from the market. Both of the freewares listed an ambient light sensor on my device as -"Lite-on al3000a Ambient Light sensor"-
BOTH THE APPS COULD NOT GET ANY DATA FROM THE SENSORS :O-
DO we even have a sensor? or is it just me without it?
Can someone please use the apps and tell me if any data is being collected from the sensors?
Highly appreciated- thanks you

I tried with Sensor List and it does indeed show up the sensor, but doesn't seem to be getting any data from it. So it's not just your tablet.

Same thing with "AndroSensor", it shows it but no data change in it either. Hopefully we can figure out what the issues is? Are both of you using the factory install rom? Or a rooted one with a tweaked kernel?

sda.171 said:
Just as the title says-
I am not able to locate the light ambient sensor on my A500 tab- My previous A500 got replaced by acer because the speakers were defective in some way-
I have read that the light sensor is located below the volume rocker and rotation switch on the black glass and can be seen under bright light- i tried every way to find it no success.
I tried "proximityscreenoff" and "sensorlist" from the market. Both of the freewares listed an ambient light sensor on my device as -"Lite-on al3000a Ambient Light sensor"-
BOTH THE APPS COULD NOT GET ANY DATA FROM THE SENSORS :O-
DO we even have a sensor? or is it just me without it?
Can someone please use the apps and tell me if any data is being collected from the sensors?
Highly appreciated- thanks you
Click to expand...
Click to collapse
I got Sensorlist and tried it and I do get data from it.
xhz/xxxx or xxxxxms and a red line. The upper limit is 227 and lower limit is -227 and the red checked number changes. It's nowhere as quickscrolling as the other sensors but I get a jagged red line moving across.

okay guyz i think i figured this whole thing out most probably-
I just came back from this electronic store, i closely examined the iconia on display- a500 - noticed the black glass under the volume rocker and rotation lock and THE LIGHT SENSOR WAS THERE! :O - looking like just any ordinary light sensor-
This made me come up to the following conclusions- since i have had another iconia before i returned it for warranty- i was able to identify the following differences-
1st variant-model
Light sensor present
Mic volume low
Volume locker button hard to push
Power button sorta pushed inside
2nd variant model -( the one i currently have)
Light sensor absent? Or hidden under black glass? (Manufacturing defect?)
Loose rotation lock (hardware) toggle
Mic volume high (as in proper)
-(i faced these additional problems)-> glass over the camera came off and the glossy label on the side slipped out.
So if u have the first variant, the one i previously had and the one i examined in the shop today- that should give u data from the light sensor, and the 2nd variant with hidden/absent light sensor won`t.
These are my findings. Feel free to point out and discuss-
What should we do? I m considering a second replacement now -_____-

With AndroSensor app open, try to put some direct light above the sensor and see if it shows some readings. I noticed that the sensor is in a sort of sleep status until it sees some light; after then it kinda wakes up and works properly.

I appear to have what you call the second variant model. I just checked with Androsensor, and the light sensor does appear to be present beneath the black glass, just under the volume up rocker. I agree it does appear to sleep until it senses a light source.

cm0901 said:
With AndroSensor app open, try to put some direct light above the sensor and see if it shows some readings. I noticed that the sensor is in a sort of sleep status until it sees some light; after then it kinda wakes up and works properly.
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Click to collapse
I just downloaded andro sensor-
Under light sensor it sed-waiting for event-
I took my hd2, turned on the flash! Pointed it right above the sensor and no response, it just kept saying waiting for event- so does this mean i have a defective sensor?
Can this be a kernel/rom related issue?
Pls someone try this and let us all noe.
Thanks

It's a long shot but you might attempt flipping the check mark a few times under the brightness setting and "auto adjust" as that probably toggles the sensor as well, though these apps are supposed to do it. Or close and start the app a few times and then check the sensor. I don't know what activates it but I can confirm that it has some kind of threshold where it sleeps or isn't active and another where it is, so you might want to try various things to, as others have mentioned, wake it up.
Are you using any ROMS by any chance or are you on stock? Have you done any sort of modification of the system - rooted and removed things or replaced kernels, etc?
If you are on a ROM or have done any modifications, you may want to try going back to full stock 3.2 or 3.1 and seeing if that helps before you decide it's actually defective.

Just double checked mine running a 3.2 rooted with thor's kernel. The sensor is working fine. But i did have to uncheck the box for the auto screen brightness to wake it up. Then i used a led maglight on the senor.
Readings from Androsensor:
Light (0.5mA)
55.0 lux
With the maglight cut on it.
65790.0 lux.
Please note with the maglight cut on you can see the light sensor hole then.

KILLER_K said:
Just double checked mine running a 3.2 rooted with thor's kernel. The sensor is working fine. But i did have to uncheck the box for the auto screen brightness to wake it up. Then i used a led maglight on the senor.
Readings from Androsensor:
Light (0.5mA)
55.0 lux
With the maglight cut on it.
65790.0 lux.
Please note with the maglight cut on you can see the light sensor hole then.
Click to expand...
Click to collapse
Same as Killer, seems to be working, rooted 3.2, couldnt see until bright light on it.
Anyone have any idea where the mic(s) are, not really important just wanna know which end to scream into when doing voice search

Mic is located directly in the top center of the front face, in the space between the glass and the bezel. You should be able to see it with just a small amount of light shining on it.

FINALLY!
after various non stop auto brightness toggle on and offs - waiting for event went and 1 lux came xD - i shone light the reading increased - and stopped working agen :|
I dunnu maybe the apps are not fully compatible.
I can say it is working because i changed my brightness to full manually and then turned auto on and the brightness level set itself automatically.
So will we have to wake up the sensor from a state of sleep all the time or is it just for the apps xP - last confusion.
Thanks every1 for ur responses, the mystery is finally coming to an end xD!