Author Topic: Would this work for a IR Array?  (Read 6273 times)

Offline rockiesjt

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on: December 21, 2009, 11:47:42 AM
Pinecom PN850 48 IR LED Illuminator would this work for a IR LED array?

Thanks



Offline boonjin

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Reply #1 on: December 22, 2009, 07:05:31 PM
Hi,

As requested, I have taken a look at the specifications and it seems that the emitted wavelength is 850nm

http://www.amazon.com/Pinecom-PN850-48-LED-Illuminator/dp/B002OU3IC6
 
Quote
Specifications: LED: 48 Infrared LED IR LED Lightwave: 850nM (Nanometer) Light Range: Up to 60 feet, best view range between 15-35 feet.

However, the bandpass filter for the Wii Remote works optimally at about 940nm. Although the Wii Remote should be able to detect the IR from the array but it may not be sensitive enough for the use for finger tracking as only a small portion of the emitted power will pass through the filter.

Therefore, you may want to look for other arrays or replace the Wii Remote's bandpass filter which is placed in front of the camera.

Regards,
Boon Jin

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Offline rockiesjt

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Reply #2 on: December 23, 2009, 10:27:05 AM
Hi,

Hate to bother you again but do you think it would be easier to replace the bandpass filter or buy a IR array of 940nm wavelength. And also how would I replace the bandpass filter?

I really appreciate all the help!

Thanks



Offline boonjin

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Reply #3 on: December 23, 2009, 08:01:54 PM
Hi,

I would suggest you not to create multiple threads in the forum. :)

You can try to replace the bandpass filter with such as these
http://nuigroup.com/forums/viewthread/3030/

Getting an IR array directly with 940nm might not be easy. It should be alright if you build one yourself.

You may want to try yourself how sensitive the Wiimote's camera is with the wavelength that you are using.

Regards,
Boon Jin

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Wii Whiteboard/Wiimote Whiteboard with annotation features and collaborate with multiple iPads and Android Tablets!

Smoothboard for Mac
Using a Mac? Now you can annotate on PowerPoint or Keynote slideshows!

BoonJin[/url