[Laser] Trihedral prism source?

James Whitfield n5gui at cox.net
Tue Mar 10 12:49:52 EDT 2009


Jim

I tried to contact you offline.  I do not know if the message got to you.

I was wondering if it would be possible to get pictures of the 12X12 mirror 
retro-reflector that you built.  Of particular interest is the method you 
used to adjust the relative angles.

My attempts were rather crude and un-successful.  That probably was due to 
my lack of imagination to "see" the solution.  I would like to see how you 
approached the problem.

Thank you.

James
 n5gui



----- Original Message ----- 
From: "Jim Moss" <n9jim-6 at pacbell.net>
To: "Free Space LASER Communications" <laser at mailman.qth.net>
Sent: Sunday, March 01, 2009 12:36 PM
Subject: Re: [Laser] Trihedral prism source?


James,
Agree with your inputs. I use the same items.
I recommend the stick on reflective tape. Pretty easy to use and attach.

I've built the 12x12 setup, and it works well, especially when the beam has 
expanded to greater than the size of the reflectors, then you get "1" beam 
back.
For adjusting, I used a screw/nut arrangement to hold the angles. This 
allows easy tweeking of the sides.

Jim
N9JIM






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