I care about ppl's safety...all people, especially quilters.
My mother is a quilter. She is legally, but not totally blind.
She wanted a laser beam on her sewing machine so I researched them, thinking
I might want one too.
What I found was surprising and thank goodness I read up on them before installing
one.
Here are some website addies for you to see information for yourself. Please read past
the first couple of sentences for all the information. Many start out with the "good news"
and then get to the warnings later.
Light from these lasers on a sewing machine can be reflected at your eyes and you are
going to be staring at it for a long time, maybe hours.
Please don't find out the hard way.
http://www.laserpointersafety.com/la...head-eyes.html
http://www.sciencebuddies.org/scienc...r_Safety.shtml
https://en.wikipedia.org/wiki/Laser_safety
http://www.lasersafetyfacts.com/2/...
WHAT IS A CLASS 2 LASER?
Class 2 lasers are considered safe for normal operation. Class 2 lasers' output power is below 1 milliwatt. All Class 2 lasers emit visible light only
.
A Class 2 laser is relatively weak. It normally would not harm an eye beam. unless a person deliberately stared into the beam.
(Light reflected is the equivalent and it only takes seconds to burn your retina
. mousie's personal comment inserted here.)
However, even a Class 2 laser can be a distraction, glare or flashblindness hazard for pilots and drivers.
NEVER aim any laser towards an aircraft or vehicle that is in motion. This is unsafe and is illegal -- you could be arrested and jailed.
mousie: not only is it illegal, don't be fooled by safety sites that say it's too
far to affect a pilot. It's the glare also, that is distracting and a visual problem for these pilots.