Re: Projector from Hell

[P3D Sam Smith <3dhacker@xxxxxxxxxxxxx>]

At 08:27 PM 12/12/96 -0600, you wrote:
>Sam, the TDC 116 is my favorite projector (my REAL projector) so be careful
>what you say about it! ;)

You mean you don't favor the Realist projector?

ng polarization, I tried hard to think of a situation that is
>compatible with the three characteristics that you mentioned (1. one image
>is not polarized, 2. turning the glasses sideways cancels that image, 3.
>placing the filters in front works OK, 4. using the back channel works OK
>too)
>
>Bulb misalignment or slide misalignment will not affect polarization.  
>If only 1 and 2 were happening, I would say that one filter was positioned
>wrong, but that's not in agreement with 3,

I did check the filters, and found one about 5 degrees out. No improvement.

 4.  If 1, 2, 3 were happening I
>would say that something in the beam's path was rotating polarization by
>90 deg. (highly unlikely) but not in agreement with 4.  There is no way to
>have a slide not work in the front channel and work in the back.
>
>Great puzzle but I see no solution!

That's why it's the projector from hell! I'm baffled, but I'm going to try
some re-alinment anyway. Thanks George!

Allan wrote:

>...could there be something funny about one of the projection lenses?
>
>What else is left?
>

Nothing! I cleaned the lenses, condensers and again no change. How can
polarization change depending on whether it's in front or behind the image
is the big mystery. I'm not giving up yet!



Sam



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