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Old 03-12-2012, 09:13 PM #1
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Default Laser-tag outdoor lasers *pulse vs. class calcs?*

Hi, I'm currently using

OPV302 with a 41x114mm double convex lens to expand the beam. I get ranges in sunlight of 40 yards and 150 yards in the shade. I host games for fun with a variety of equipment I built (I'm an electrical engineer by trade).

I would like to figure out how the laser classification/derating schemes work. IE, I know the 10mW 850nm Laser above is rated 3B, but it's class 1 with my system due to it being only 50ms pulses at 25% duty cycle (effectively 1mW I'm told).

SO, what can I do to bump it to a class2 and still be safe? I can't push that laser any harder then 45mA that it is now. So I was thinking of some of the following:

SPL PL 90_3 - supposedly 70W, but that's PEAK rating, not continuous

SPL PL 90_0 - supposedly 4W, but that's PEAK rating, not continuous

I want better range, which means stronger lasers but I have no way to account for safety during pulse operation for sure. Obviously they will NEVER be able to run at continous (the circuit would fail before that). So I'm trying to be responsible before testing them on my own.


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Old 03-12-2012, 09:16 PM #2
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Default Re: Laser-tag outdoor lasers *pulse vs. class calcs?*

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