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Thread: Using More Than 3 Wavelengths...Theoretical Discussion

  1. #21
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    But the FB3-SE and FB3-XE can only control 3 color channels
    http://www.pangolin.com/flashback/flashback3.htm

    Two 12-bit for X & Y (single-ended - differential optional)
    Four 8-bit for color
    Optional TTL outputs
    Is this a typo or a misunderstanding of what its referring to?
    Frikkin Lasers
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    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

  2. #22
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    Quote Originally Posted by norty303 View Post
    http://www.pangolin.com/flashback/flashback3.htm



    Is this a typo or a misunderstanding of what its referring to?
    I take that to mean RGB and Intensity("grayscale" blanking) for single color projectors.
    If you're the smartest person in the room, then you're in the wrong room.

  3. #23
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    Is the intensity 8 bit? I thought it just went high if anybody the colours were above zero
    Frikkin Lasers
    http://www.frikkinlasers.co.uk

    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

  4. #24
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    It should be 8bit. Otherwise you would have no fade or attenuation in software.
    If you're the smartest person in the room, then you're in the wrong room.

  5. #25
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    In my experience, connecting a mod line to the intensity output gives TTL style output. It may have changed more recently and unfortunately I don't have an SE board here to test anymore.
    Frikkin Lasers
    http://www.frikkinlasers.co.uk

    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

  6. #26
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    Yes, intensity line is 8 bits. And yes, this is the "fourth DAC" on FB3-SE and XE and the "seventh DAC" on FB3-QS and QM2000. In LD2000, this is fully trainable and can act as a seventh fully analog color channel. The shutter output is also trainable, acting like an eighth analog color channel.

    Normally the intensity line will appear to give TTL action. This is because we recommend connecting single-color-projectors to a color line rather than the intensity line. Also, back in the PCAOM days (not too long ago), this intensity line gave additional information to the PCAOM driver, which it used to impose an additional level of attenuation during blanking periods. On PCAOM drivers, this is a TTL input.

    Bill

  7. #27
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    Normally the intensity line will appear to give TTL action.
    Ok, you've got me intrigued.

    Can you describe a scenario where it doesn't give TTL behaviour?
    Frikkin Lasers
    http://www.frikkinlasers.co.uk

    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

  8. #28
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    regarding PCAOM.. the color gets shifted like a prism.. how does the PCAOM modulate the colors? Is it able to partually reflect off the light to waste beam as well?

  9. #29
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    Quote Originally Posted by masterpj View Post
    regarding PCAOM.. the color gets shifted like a prism.. how does the PCAOM modulate the colors? Is it able to partually reflect off the light to waste beam as well?
    I doubt it. More that likely it would modulate the colors, PWM style. Since most crystals are able to function in the upper KHz and MHz range, you'd never see the "pulses", no matter how fast you were scanning.
    If you're the smartest person in the room, then you're in the wrong room.

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