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Old 11-26-2007, 02:57 AM #1
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Default IR filter?? need some help

Okay i was tearing apart a laptop happily ;D till i found there was no usable diode jus this weird crystal thingy any ideas? but anywasy i discoveverd that there seemed to be and and ir filter???? it was this rectangulare blue sheet of glass does any one know anything bout this???????


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Old 11-26-2007, 03:01 AM #2
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Default Re: IR filter?? need some help

okay now that i look at it a little closer i appears to have and orange sheen to it too kin of reflective but it was a 90deegree angle to the diode so how can it reflect up?
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Old 11-26-2007, 04:14 AM #3
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Default Re: IR filter?? need some help

I've seen things like this and I'm not sure exactly what the coating does but if you shine a laser though it you can get the beam to go through it and reflect off of it nicely. I have actually sued the reflection off of one of these to pop a balloon before.
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