Is this LED okay? 
Posted: 25 October 2008 09:38 AM   [ Ignore ]
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Hi, I’m using FTIR setup and i can buy this leds

5mm + 940nm + 60º + 60 mW/Sr

VDC = 1,5V - 1,6 V ; Vmax = 2,1V

Thanks from Argentina,Mar del Plata.

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Carlos Allevato, Flickr, Blog

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Posted: 18 November 2008 04:47 PM   [ Ignore ]   [ # 1 ]
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I´ve tested this leds and 5mm + 850nm + 30º + 50 mW/Sr and the 850nm work a lot better.

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Posted: 18 November 2008 08:13 PM   [ Ignore ]   [ # 2 ]
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850nm is more easily picked up by normal webcams than 940 or higher nm.
A problem might be that these leds are a bit dim (only 50 mw/sr).
For example the sfh485 has a brightness of 160mw/sr.

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