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Thread: Project NiteVision - NiteMax + HUD + carputer

  1. #661
    FLAC DodgeCummins's Avatar
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    You are always transmitting IR light...at least with a regular bulb...I can't speak for the high voltage arc lights installed on the Mercedes.

    You are not sending out much IR spectrum...but it is there. [media]http://physics.weber.edu/schroeder/eee/chapter6.pdf[/media]

    Obviously an LED array of a specific wavelength should produce more IR.

    The traffic light hack involved specific timed pulses to trigger the light change.

    Besides the new BMW has IR.

  2. #662
    Variable Bitrate quantum's Avatar
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    Quote Originally Posted by DodgeCummins View Post
    You are always transmitting IR light...at least with a regular bulb...I can't speak for the high voltage arc lights installed on the Mercedes.

    You are not sending out much IR spectrum...but it is there. Obviously an LED array of a specific wavelength should produce more IR.

    The traffic light hack involved specific timed pulses to trigger the light change.

    Besides the new BMW has IR.
    Hey DodgeCummins,

    Your right, even white light emits IR. It emits UV too. Wavelengths of the visible and not-so-visible spectrum are kinda my thing.

    I'm just sayin' use and implementation of IR on the front of a car should be considered carefully, due to the possible, however unlikely, legalities. Same is true for the display.

    Converting fog lights to IR emitters would hide them well, cus to the camera they'd probably look like bright fog lights. Building an IR LED array 2' long and mounting it behind the grille might just raise an eyebrow.

    Had a chance to browse that Microvision site, and saw their HUD capabilities. Now I am very seriously considering that LCD idea I mentioned a few posts back. It might even work...the image would be magnified and skewed correctly so the text would look flat (i think). Maybe use something like this:

    http://www.noritake-elec.com/uversion.htm

    http://www.noritake-elec.com/colors.htm

    Then one of you nice folks can write me PIC programs (since I know jack), and I'd be totally SET!

  3. #663
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    Quote Originally Posted by DodgeCummins View Post
    You are always transmitting IR light...at least with a regular bulb...I can't speak for the high voltage arc lights installed on the Mercedes.

    You are not sending out much IR spectrum...but it is there. [media]http://physics.weber.edu/schroeder/eee/chapter6.pdf[/media]

    Obviously an LED array of a specific wavelength should produce more IR.

    The traffic light hack involved specific timed pulses to trigger the light change.

    Besides the new BMW has IR.
    Mercedes uses H11 halogens with a IR through filter as a source for it's IR high beam.

    BMW uses a PathFindIR thermal cam for it's system, with no need for IR illumination at all.

    You just can't compare apples and oranges.

    The Mercedes nightvision option has a 1.500 price tag, the BMW a 15.000 one.

  4. #664
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    Mercedes : [media]http://www.youtube.com/watch?v=l6DMidknVCo[/media]

    IR Illuminators outside & camera inside.

    BMW : [media]http://www.youtube.com/watch?v=-3uaTyNWcBI[/media]

    No IR illuminators and thermal cam outside.

  5. #665
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    @ Genesisfactor : To recap on the IR LED diffusor bit. I might have been mistaken in explaining the function of the Bicycle headlight lenses as polarising the beam.

    When sending a laser beam through those lenses the dot (.) becomes a line (-).
    I used three of those lenses, each one of them with 2 NiteMax LED modules behind them.
    I took care of angling each unit so their beams wouldn't overlap.

    I hope this paints a better picture of what I tried to accomplish then my previous attempt to explain.

  6. #666
    Newbie redleader36's Avatar
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    Quote Originally Posted by shotgunefx View Post
    When are those damn laser cell phone projectors coming out!
    You could make your own laser projector. this one is simple, but it could work; just replace the slide with a small b/w lcd! http://www.instructables.com/id/Laser-Image-Projector/

  7. #667
    FLAC
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    where are we projecting the image onto? the window glass or at something?
    Carputer Progress: Here we go again...

    THE GF THEME
    Genesis has speed
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    Genesis sent money
    before your a__;)

    Join the fight against carputters. EMAIL ME!

  8. #668
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    missing link!

    You will need another piece of plexi between the dash and the windscreen. It should be slightly mirrored. Same concept as fighter jets.
    The glass wont do well because of the angle and curve.
    I have done a few of these on cars and bikes. You may want to check if that LCD is rtransmissive or transflective too. You could put a slightly brighter light to the back if needed.
    As for the comment #1 about that drug runner, I have seen that movie too, it stank!

  9. #669
    Variable Bitrate quantum's Avatar
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    Just a quick note -

    Got the pinouts for the Caddy camera today. Basically, it is 2 wires (high/low) for the composite signal, a set of IGN power/ground to the front of the camera, then it mentions a "14 Volt Reference" and ground.

    WTF is a 14 Volt Reference, anyone know? I am trying to figure out how to squeeze 14V outta 12V, unless that means something else???

    Other than that, this looks doable!!!

  10. #670
    FLAC
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    yeah, a voltage regulator will upvert the voltage form 12 to 14. Ak mark about the electrical, or someone here...but i would suggest mark...nothing better than a seasoned engineer!
    Carputer Progress: Here we go again...

    THE GF THEME
    Genesis has speed
    Genesis has class
    Genesis sent money
    before your a__;)

    Join the fight against carputters. EMAIL ME!

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