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From: "Lord Garth"
Subject: Re: Deflecting laser beam 90°
Date: Fri, 27 Sep 2002 11:47:35 -0500
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"Sir Charles W. Shults III" wrote in message
> "KILOWATT" wrote in message
> > Hi everyones. It's to protect a very small area
> > with the beam of an ordinary laser pointer.
> > I need a way to deflect it's beam by 90° but cannot
> > figure how since my knowledge in optics is limited.
> > With a small piece of mirror it's easy to bring back
> > the beam to toward the laser source...(at or near 180°)
> > but at the angle of 90°...hmmmmm..????????????????
> Just aim the mirror. At 45 degrees, the mirror will reflect the beam
> degrees. This is the reflexive law.
> Chip Shults
> My robotics, space and CGI web page - http://home.cfl.rr.com/aichip
The angle of incidence equals the angle of reflectance...so as Chip said,
set 45 degrees since 2*45=90.
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