Some questions for our law-enforcement friends, from your experience using LIDAR guns 1) is there any significance to aiming the crosshairs at a vehicle's front/rear license plate vs. body? for example: range. 2) maximum distance you've gotten a reading from a vehicle with a front license plate vs. vehicle without? 3) maximum distance for a motorcycle, type of motorcycle? did the colour of the motorcycle affect the range? 4) maximum distance using a tripod, vehicle-mount and just plain hand-held 5) any particulars or formulas as to how wide the beam is at different distances? I have attached a picture of the LIDAR gun in question, can anyone shed light on it's particular model? courselidar.jpg
Some questions for our law-enforcement friends, from your experience using LIDAR guns
1) is there any significance to aiming the crosshairs at a vehicle's front/rear license plate vs. body? for example: range.
2) maximum distance you've gotten a reading from a vehicle with a front license plate vs. vehicle without?
3) maximum distance for a motorcycle, type of motorcycle? did the colour of the motorcycle affect the range?
4) maximum distance using a tripod, vehicle-mount and just plain hand-held
5) any particulars or formulas as to how wide the beam is at different distances?
I have attached a picture of the LIDAR gun in question, can anyone shed light on it's particular model?
courselidar.jpg
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aim for a reflective surface of the vehicle, as the beam has to be reflected back to the unit group this together...... - colour: what it does is "absorb" light and take longer for some colours to "reflect" back. (longer = milliseconds) Take a flashlight and shine it on a white piece of paper, then again on a black piece, you will see that the white "reflects" brighter as the black absorbed more light, however the black is still reflecting back - plate/body etc... lidar needs a surface (be it a plate, body, fairing, headlight, etc..) to reflect the beam back to the unit no such thing as "vehicle mount" for a lidar. I have obtained distances in excess of 2km on both tripod and hand-held. Having said that I prefer the 600-700m area as it gives me ample time to set the unit down, and either get cruiser ready to go or walk out onto the hwy and wave the vehicle in. 30cm wide per 100m distance, so 1km beam is only 3m wide, width of a lane of most highways is 3.75m also in 1 second the unit will make between 60-240 speed calculations (pending on type of unit used) and looks like a Laser Atlanta Speed Laser = awesome tool!!
iFly55 wrote:
1) is there any significance to aiming the crosshairs at a vehicle's front/rear license plate vs. body? for example: range.
aim for a reflective surface of the vehicle, as the beam has to be reflected back to the unit
2) maximum distance you've gotten a reading from a vehicle with a front license plate vs. vehicle without?
3) maximum distance for a motorcycle, type of motorcycle? did the colour of the motorcycle affect the range?
group this together......
- colour: what it does is "absorb" light and take longer for some colours to "reflect" back. (longer = milliseconds) Take a flashlight and shine it on a white piece of paper, then again on a black piece, you will see that the white "reflects" brighter as the black absorbed more light, however the black is still reflecting back
- plate/body etc... lidar needs a surface (be it a plate, body, fairing, headlight, etc..) to reflect the beam back to the unit
4) maximum distance using a tripod, vehicle-mount and just plain hand-held
no such thing as "vehicle mount" for a lidar. I have obtained distances in excess of 2km on both tripod and hand-held. Having said that I prefer the 600-700m area as it gives me ample time to set the unit down, and either get cruiser ready to go or walk out onto the hwy and wave the vehicle in.
5) any particulars or formulas as to how wide the beam is at different distances?
30cm wide per 100m distance, so 1km beam is only 3m wide, width of a lane of most highways is 3.75m
also in 1 second the unit will make between 60-240 speed calculations (pending on type of unit used)
and looks like a Laser Atlanta Speed Laser = awesome tool!!
Above is merely a suggestion/thought and in no way constitutes legal advice or views of my employer. www.OHTA.ca
i found, what i believe to be a Laser Speed Atlanta Manual: http://www.laseratlanta.com/files/Advantage.pdf on Page 52, what does 'Reflectorless' mean?
I believe that's simply a reference to the material you're trying to obtain a reading from. I know in surveying, the measuring devices have different ranges depending on if you're trying to obtain a reading from a reflector (the guy holding the reflective sign) versus a non reflective surface (a concrete wall). I'm sure LIDAR is the same, better range if you're hitting something reflective like a plate or headlight versus something non-reflective like a wooden box on the back of a truck.
I believe that's simply a reference to the material you're trying to obtain a reading from. I know in surveying, the measuring devices have different ranges depending on if you're trying to obtain a reading from a reflector (the guy holding the reflective sign) versus a non reflective surface (a concrete wall). I'm sure LIDAR is the same, better range if you're hitting something reflective like a plate or headlight versus something non-reflective like a wooden box on the back of a truck.
clearly that is NOT a Laser Atlanta Speed Laser manual, can tell that my looking at the unit itself which says "advantage" on it and the colour Then the earlier photo provided is the Laser Atlanta Speed Laser
clearly that is NOT a Laser Atlanta Speed Laser manual, can tell that my looking at the unit itself which says "advantage" on it and the colour Then the earlier photo provided is the Laser Atlanta Speed Laser
Above is merely a suggestion/thought and in no way constitutes legal advice or views of my employer. www.OHTA.ca
Hi everyone. I'm asking for a friend who has a question of interpretation.
He was ticketed for using a hand-held device. He contends that he was acting within the exemption provided under Subsection 14 (1) of O. Reg. 366/09, which reads as follows (emphasis added):
Hey guys i just wanted to know what speeds you see others do on the roads on a regular basis. As we all know no body drives 100 km. It seems they only hit that speed twice once on the way up and once on the way down.
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