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  1. #1
    Radar Fanatic
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    Default A call for Laser-Testing of Tint-Strip.

    Hey folks... another test I'd like to see.

    It is common knowledge that the Tint-strip of many cars can mess up laser detection, however since most tint strips are merely a visual light filter, I don't see why it would have a significan impact... unless there is some polarization or something else happening also.

    I'd love to see the next test from Guys of Lidar or someone to do some stationary testing to see

    a) if placing the RD behind or just under the tint strip makes a difference. and
    b) If mounting high or low makes a difference.

    This should be a very very easy experiment to setup run under identical conditions for various detectors...

    No moving car, simply the same car, targeted at the same distances with various mounting locations.

  2. #2
    Experienced
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    Default Re: A call for Laser-Testing of Tint-Strip.

    Quote Originally Posted by lordhamster
    Hey folks... another test I'd like to see.

    It is common knowledge that the Tint-strip of many cars can mess up laser detection, however since most tint strips are merely a visual light filter, I don't see why it would have a significan impact... unless there is some polarization or something else happening also.

    I'd love to see the next test from Guys of Lidar or someone to do some stationary testing to see

    a) if placing the RD behind or just under the tint strip makes a difference. and
    b) If mounting high or low makes a difference.

    This should be a very very easy experiment to setup run under identical conditions for various detectors...

    No moving car, simply the same car, targeted at the same distances with various mounting locations.
    I think what Mike V. says about this makes a lot of sense.

    Quote Originally Posted by http://www.valentine1.com/laserhowto/
    Mounting high behind the tint band may reduce the laser signal somewhat, but it reduces the sunlight contamination by the same amount. The result is an unchanged laser-to-sunlight ratio from the scene beyond your vehicle, but with reduced hood reflections owing to a higher vantage point—a net gain. Only in the dead of night would a just-below-the-tint-band mounting position be beneficial.
    That said, tint strips vary in the amounts of light they reduce, but no matter what happens, the sunlight reduction will be reduced the same amount, and the higher vantage points reduces hood reflections.

    When its cloudy or night time though, the tint band won't help you.

  3. #3
    Experienced
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    Default

    ditto, this has been done and is on Valentines site, although has been a while.

  4. #4
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    Default

    Quote Originally Posted by PassportToSpeed
    ditto, this has been done and is on Valentines site, although has been a while.
    I'd like to see a test like the kind the Lidar Guys have been doing.

    Again, I'm not a big fan of heresay and "well this should behave like this" type comments spouted as fact.

  5. #5
    Founder of Stealthvation
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    Default

    I think the tint strip will effect LIDAR performance. The V1 to begin with is sensitive as hell on LIDAR so the tint strip would not realy effect it all that much.
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  6. #6
    Radar Fanatic
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    Default

    Jimbonzzz is making me up a LIDAR tester, and I intend to test this on a few vehicles with my RX65, a Bel Express 925, and maybe a Whistler 1730c.

  7. #7

  8. #8
    Radar Fanatic
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    Default

    Quote Originally Posted by jimbonzzz
    Hey, I should try that with my tint strip... :wink:
    I'd be interested to see that. I'm not so sure that a "one size fits all" recommendation will work because i'm sure that the formulation of the tint strip varies from car to car. I know that the tint band on a 2001 Mercury Sable is very dark, so I intend to test that. My Escort (1998) has a tint that's not all that dark, but it's a replacement window, so I can't speak for the original.

    *cough* Sure would be nice to have a Lidar tester to be able to check those with :-)

  9. #9
    Yoda of Radar
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    Default

    Quote Originally Posted by compu44
    *cough* Sure would be nice to have a Lidar tester to be able to check those with :-)
    How many you want?


  10. #10
    Radar Fanatic
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    Default

    I found a CT trooper running a laser trap a few hours ago. With the V1 behind my tint strip I got no alert at all. Thing is, he might not have painted me because I was sitting in the right lane and I had already slowed most of the way to the limit since I saw the brake lights up ahead. But due to the geometry of the corner I really expected to pick up some scatter at least. I've re-arranged the mount so that the detector sits just below the strip now because I'd rather be safe than sorry.

 

 

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