Hi all, I just read through the FDA laws (21CFR1040.10) on legal laser limits, which you can read for yourself here: http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfCFR/CFRSearch.cfm?FR=1040.10 . Basically, lasers under 5mW, such as the common Class-IIIa only require a label in the visible range, so that's fine. But I am considering selling a few blu-ray violet pointers at about 10mW, which would be Class-IIIb and things are much more complicated there.
For such a 10mW laser, the requirements are a physical aperture block, a delay between activation and emission (that would REALLY annoying for presentations!!), a key switch to activate the power supply, and an interlock to stop the emission. The emission delay is my biggest concern [21CFR1040.10(f)(5)(ii) -- (ii) Each laser system classified as a Class IIIb or IV laser product shall incorporate an emission indicator which provides a visible or audible signal during emission of accessible laser radiation in excess of the accessible emission limits of Class I, and sufficiently prior to emission of such radiation to allow appropriate action to avoid exposure to the laser radiation.]. Basically, an indicator must light first, then the beam can come out later. UGH!!!
So far, I've only seen all of these requirements from LaserGlow. They have a cumbersome 5-point safety system that meets these FDA requirements (see http://www.laserglow.com/index.php?regulations). But no one wants a delay before the beam comes out, or an interlock that you have to strap to your wrist!
How does Wicked Lasers do it? I couldn't find any info on their site. How do other companies sell 100mW pointers legally in the US without adding these restrictive, cumbersome safety features without getting in trouble??
Maybe the best way is to tune the laser to 10mW, then put an attenuator (e.g., piece of clear green tape) over the aperture to get it down to 5mW and warn the user not to remove the attenuator. Then if the end user removes the attenuator, that's their choice, but I won't get in trouble!
For such a 10mW laser, the requirements are a physical aperture block, a delay between activation and emission (that would REALLY annoying for presentations!!), a key switch to activate the power supply, and an interlock to stop the emission. The emission delay is my biggest concern [21CFR1040.10(f)(5)(ii) -- (ii) Each laser system classified as a Class IIIb or IV laser product shall incorporate an emission indicator which provides a visible or audible signal during emission of accessible laser radiation in excess of the accessible emission limits of Class I, and sufficiently prior to emission of such radiation to allow appropriate action to avoid exposure to the laser radiation.]. Basically, an indicator must light first, then the beam can come out later. UGH!!!
So far, I've only seen all of these requirements from LaserGlow. They have a cumbersome 5-point safety system that meets these FDA requirements (see http://www.laserglow.com/index.php?regulations). But no one wants a delay before the beam comes out, or an interlock that you have to strap to your wrist!
How does Wicked Lasers do it? I couldn't find any info on their site. How do other companies sell 100mW pointers legally in the US without adding these restrictive, cumbersome safety features without getting in trouble??
Maybe the best way is to tune the laser to 10mW, then put an attenuator (e.g., piece of clear green tape) over the aperture to get it down to 5mW and warn the user not to remove the attenuator. Then if the end user removes the attenuator, that's their choice, but I won't get in trouble!