[Laser] IR laser Array??? Safety Note
John Schnurer
[email protected]
Sun, 12 Jan 2003 15:18:17 -0500 (EST)
Dear RB and Group,
If you have a viewing method, such as the camera, it is a GOOD
idea to leave it on ALL the time when it is possible power may be applied
to the laser.
WARNING:
Specular surfaces are those which reflect. This is a very loose
and general use of the term, but is useful in the area of safety.
Specular Reflections of laser energy can be as dangerous, and in some
cases More dangerous than non reflected energy.
NOTE: IR may be reflected from OTHER materials that do not
reflect visible light well.... thereby leading yourself to fool yourself.
JH
On Sat, 11 Jan 2003, Richard Burrows wrote:
> John
> Appreciate your points and will take due care when using and operating the
> devices.I do have a Mono CCD camera that I use to see the IR, so do have an
> idea where it is.I also have a power meter to monitor laser output, so I
> have no excuse for accidents.
>
> Thanks again
> Dick - G8BYI
> ----- Original Message -----
> From: "John Schnurer" <[email protected]>
> To: "n9jim-6" <[email protected]>
> Cc: <[email protected]>
> Sent: Saturday, January 11, 2003 6:43 PM
> Subject: Re: [Laser] IR laser Array??? Safety Note
>
>
> >
> > As an additional safety note:
> >
> > (A) In some of the lower power lasers the "idea" or concept of
> > safety is based on a mammalian, human eye-response. The idea is the laser
> > is bright enough to cause the viewer to blink, turn away or otherwise
> > avoid the laser BEFORE the total of time and power can do permanent eye
> > damage.
> > (B) AT HIGHER POWERS: The laser is so powerful you WILL have
> > damage before the aversion reflex takes over.
> >
> > (C) INVISIBLE WAVELENGTHS:
> >
> > This is an area with potential to cause permanent damage
> > at nearly ANY power level. Because you do not see or percieve the laser
> > you do not exhibit the avoidance mechanism or reflex.
> >
> > (D) DAMAGE RIGHT NOW AND NO SECOND CHANCES:
> >
> > In any event it is possible to place yourself or others in
> > a situation which results in RIGHT NOW and Lifelong damage.
> >
> > Be Careful.
> >
> > JH
> >
> >
> >
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>
>
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