Was dot, now line

[steve-o]

This doesn't make any sense to me.. I dropped a P73 corrected module into my "laser-widow" (ok, I'll wait for the laughter to subside) just for shtz an grins and the farfield went to crap. Wtf?? It was fairly big nearfield but perfect dot farfield before. Then when I bounce it off of 3 45° mirrors there's a big line-- no more dot. How can just 3 mirrors do this???

Here's just the module (with round dot on tree 100 ft away):





Now here's the result in my 'projector' after bouncing off the 3 mirrors:



Here's the 3 mirrors:



How could 3 mirrors do this ??? (they are not rotating. pwr is off-they are standing still)

[Shawnb]

maybe one mirror is warped?

[steve-o]

maybe one mirror is warped?

Hmm-- I'll check that-- thanks!

[steve-o]

Yep, looks like you're right Shawn, 2 out of 3 of the FS mirrors are not exactly flat. A little convex or concave I guess. That's the last time I order bulk surplus mirrors :/ Good call. Thx. Makes me think about reversing this and making some slightly concave mirrors that will turn a line into a dot :] ..Have to think about this one for a bit .. Cheerz ..