P3D Re: Diffusers

[Greg Erker <erker@xxxxxxxxxxxxxx>]

>I am not sure what I have for software drawing tools. I have AutoCad and
>PowerPoint but I don't think I can produce a GIF or JPG file from these.
>I could hand draw it and mail to you or somebody with a scanner.

  I can convert a bmp or many other formats to GIF or JPG.
I think we can work something out.

>I am thinking about building a "proof of principle" viewer. It would be
>cobbled together with masonite and 1/4 inch threaded rod. Then just
>Fresnel lenses and the diffuser. No glass. Lightweight. Then mail it to
>anybody who wants to play with it. Fresnel lenses for the eyepieces
>would have lots of chromatic aberration. But the principle proven is
>that a single LED is sufficient to illuminate a 35mm slide if condenser
>optics are used.
>
>Any thoughts? Or is there an easy viewer to copy or adapt for this
>project. Or recommended materials besides masonite and threaded rod.
>Maybe a "toy" viewer that I can modify?

  I think a viewer with real lenses would be preferred.
The $3.25  viewer sold by Reel 3-D would be a good
candidate. It has circular bulges on the white plastic
diffuser that could be cut off to allow the LED lighting
through:
http://www.stereoscopy.com/reel3d/slide-viewers-realist.html

  Attach it to a small project box sort of like
Alan Lewis did and you are on your way.
http://members.home.net/3-d/projects/viewers/viewers1.htm

>Anybody want to donate a viewer? I will need to remove or cut open any
>existing diffuser. Then I can add LEDs, condenser optics, and a small
>horizontal angle lenticular diffuser.

  I have a couple I'm not using.

>By the way, I have no stereo slides mounted as such. I do have my one
>pair of 2x2's taken of the MD state capitol building in Annapolis.
>Anybody want to donate a mounted stereo pair to test and travel with
>this "proof of principle" viewer?

  I may have something we could use. If
I get it back when all is done. Are we
looking to do 5p or 7p or 8p images?

Greg E.