Short distance Light beam control (10cm) - what is best to use in On/Off mode?

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  1. - 25th April 2007, 19:07 #1
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    Quote Originally Posted by rhino View Post
    The other thing is to look into some kind of filter lens or plastic that will filter out stray IR similar to what you see on you VCR/DVD IR receiver.
    i'll second that one. i'll read back the whole thing but i think some sequential scanning & Beaming may help too...
    Steve

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  2. - 25th April 2007, 20:21 #2
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    Okay for all your infos.

    I think I'm going to start with IR and make some tests.

    Just found an old remote where I can recover an IR-LED...
    Roger
  3. - 26th April 2007, 07:47 #3
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    Also you may switch off the pairs and have on only one at a time. Of course this has to be done fast enough. Like scanning a keyboard. I suppose that is what Steve implied?

    Ioannis
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  4. - 26th April 2007, 15:12 #4
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    Yup, that's what i think... never tried it so far.
    Steve

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