Problem with IT emitter in 3D vision 2 kit
Hi, just recently purchased the 3D vision 2 kit and looks like some problem with IR emitter - it basically works opposite to what it should. As long as emitter isn't placed directly in line of sight to the glasses, 3D is working fine, even the depth knob, green light is strong on the emitter box, glasses are OK. However when I'm putting the emitter directly in front of the glasses, 3D isn't working, glasses are passing through the normal 2D images and shutter doesn't seems to be working at all. Went through the manual, because it seems a bit weird and couldn't find any useful information, expect that the emitter should be placed in line of sight for the glasses. Does anyone have the same problem with the kit? What should I do about it? Thanks.
Hi,

just recently purchased the 3D vision 2 kit and looks like some problem with IR emitter - it basically works opposite to what it should.

As long as emitter isn't placed directly in line of sight to the glasses, 3D is working fine, even the depth knob, green light is strong on the emitter box, glasses are OK.

However when I'm putting the emitter directly in front of the glasses, 3D isn't working, glasses are passing through the normal 2D images and shutter doesn't seems to be working at all.

Went through the manual, because it seems a bit weird and couldn't find any useful information, expect that the emitter should be placed in line of sight for the glasses.

Does anyone have the same problem with the kit? What should I do about it?

Thanks.

#1
Posted 04/23/2013 10:07 AM   
Exchange it for a new one, sounds defective.
Exchange it for a new one, sounds defective.

#2
Posted 04/23/2013 11:46 AM   
Well, I could, but why the 3D is working in the first place, when IR emitter isn't pointed directly to the glasses? Maybe there's something wrong with the drivers, OS, setup, not necessarily the emitter itself and the RMA will be just a waste of time? Edit. My system is running 314.22 drivers with 3D module installed, OS is Windows 7 x64, graphic card is Palit GTX 680 4GB, monitor is Benq XL2411T with LightBoost support.
Well, I could, but why the 3D is working in the first place, when IR emitter isn't pointed directly to the glasses?

Maybe there's something wrong with the drivers, OS, setup, not necessarily the emitter itself and the RMA will be just a waste of time?

Edit. My system is running 314.22 drivers with 3D module installed, OS is Windows 7 x64, graphic card is Palit GTX 680 4GB, monitor is Benq XL2411T with LightBoost support.

#3
Posted 04/23/2013 12:26 PM   
Does it work when you walk into a different room (no chance of getting a signal)?
Does it work when you walk into a different room (no chance of getting a signal)?

#4
Posted 04/23/2013 12:38 PM   
I will check this when get back from work, for now all I can say, that the glasses are enabling the shutters when going into the 3D mode (e.g. running game or NV demo in 3D), so based on this, it seems that some sort of communication between transmitter and glasses must occur, otherwise how the glasses would "know" that the shutters should start?
I will check this when get back from work, for now all I can say, that the glasses are enabling the shutters when going into the 3D mode (e.g. running game or NV demo in 3D), so based on this, it seems that some sort of communication between transmitter and glasses must occur, otherwise how the glasses would "know" that the shutters should start?

#5
Posted 04/23/2013 01:41 PM   
I does sound odd but there has to be a reason, something's either blocking or interfering with the IR 'signal' the emitter is transmitting. It's just 'light' that's below the visible wavelength, if you're near a window or fluorescent light perhaps. I know some windows block UV, not sure about IR though. There's no communication between the glasses and the emitter other than the emitter emitting IR pulses and the glasses receiving the IR pulses. The specs say: Glasses Infrared receiver Receive signal between 1.5 and 15 feet Emitter Infrared transmitter Transmit signal between 1.5 and 15 feet If nothing else is blocking or interfering with the signal perhaps you're too close? Or the emitter's facing the wrong direction, there needs to be a clear path between the IR LED in the emitter and the IR receiver, silicon photodiode, in the glasses. Both of these things also have, for lack of a better term a FOV, field of view. The emitter shoots the IR light out in a cone-like pattern, like a flashlight. If you're above that then the glasses can't receive the IR signals.
I does sound odd but there has to be a reason, something's either blocking or interfering with the IR 'signal' the emitter is transmitting. It's just 'light' that's below the visible wavelength, if you're near a window or fluorescent light perhaps. I know some windows block UV, not sure about IR though. There's no communication between the glasses and the emitter other than the emitter emitting IR pulses and the glasses receiving the IR pulses.

The specs say:
Glasses
Infrared receiver Receive signal between 1.5 and 15 feet
Emitter
Infrared transmitter Transmit signal between 1.5 and 15 feet

If nothing else is blocking or interfering with the signal perhaps you're too close? Or the emitter's facing the wrong direction, there needs to be a clear path between the IR LED in the emitter and the IR receiver, silicon photodiode, in the glasses. Both of these things also have, for lack of a better term a FOV, field of view. The emitter shoots the IR light out in a cone-like pattern, like a flashlight. If you're above that then the glasses can't receive the IR signals.
#6
Posted 04/23/2013 01:58 PM   
This may be the case, I didn't know that there's a minimum length of 1.5 feet for the emitter to be working properly, so maybe when it's not pointed directly, it actually works because of reflected IR beam (?), the same way as it works in TV's remote (it's usually works when pointed to the opposite wall). I will definitely check this today. Thanks for help.
This may be the case, I didn't know that there's a minimum length of 1.5 feet for the emitter to be working properly, so maybe when it's not pointed directly, it actually works because of reflected IR beam (?), the same way as it works in TV's remote (it's usually works when pointed to the opposite wall).

I will definitely check this today.

Thanks for help.

#7
Posted 04/23/2013 02:35 PM   
They should work fine when pointed directly at each other, I think it's more of an averaging thing. Average height of a desk vs the average height of the user sitting down vs the emitter's vertical range. I tried finding specs on 3D Vision monitors that have built in emitters and only found one that listed the emitter's range and that was 15' maximum, no minimum, which makes sense as it's at the top of the monitor and more apt to be inline with the user's glasses at close range than the emitter on the desk.
They should work fine when pointed directly at each other, I think it's more of an averaging thing. Average height of a desk vs the average height of the user sitting down vs the emitter's vertical range.

I tried finding specs on 3D Vision monitors that have built in emitters and only found one that listed the emitter's range and that was 15' maximum, no minimum, which makes sense as it's at the top of the monitor and more apt to be inline with the user's glasses at close range than the emitter on the desk.
#8
Posted 04/23/2013 03:33 PM   
OK, I've checked this and it seems working fine if the emitter isn't too close or too far, glasses were even in 3D mode in the next room with the doors opened, but once I've got too far, they went back to the normal mode. Guess that sums my problem up - too close or too for the emitter and it doesn't work, plus is that it not necessarily need to be pointed directly on the glasses to be working fine. Thanks again for all help.
OK, I've checked this and it seems working fine if the emitter isn't too close or too far, glasses were even in 3D mode in the next room with the doors opened, but once I've got too far, they went back to the normal mode.

Guess that sums my problem up - too close or too for the emitter and it doesn't work, plus is that it not necessarily need to be pointed directly on the glasses to be working fine.

Thanks again for all help.

#9
Posted 04/23/2013 07:13 PM   
Do you by any chance have a webcam in operation? If you do, it might very well interfere with your emitter's signal. I had some problems with my 3D-Vision setup recently and it took me a good while and some nerves to find out that actually my webcam was responsible. I guess that webcams use a technology similar to the emitters to measure distances(?). AND they are naturally always pointed directly at your face/3D glasses ...
Do you by any chance have a webcam in operation? If you do, it might very well interfere with your emitter's signal.

I had some problems with my 3D-Vision setup recently and it took me a good while and some nerves to find out that actually my webcam was responsible. I guess that webcams use a technology similar to the emitters to measure distances(?). AND they are naturally always pointed directly at your face/3D glasses ...

#10
Posted 04/24/2013 12:28 PM   
I've read that the emitter shoots it's beam out at an upwards angle. The assumption is that it will be placed on the desk a few feet from the user. So never have the emitter above your head, unless it's inverted. When you run the set up wizard, you are given three options to choose from for signal strength output. Be sure to choose the strongest(lan is the weakest)
I've read that the emitter shoots it's beam out at an upwards angle. The assumption is that it will be placed on the desk a few feet from the user. So never have the emitter above your head, unless it's inverted.

When you run the set up wizard, you are given three options to choose from for signal strength output. Be sure to choose the strongest(lan is the weakest)

#11
Posted 04/24/2013 05:40 PM   
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