P3D Re: Themelis the Author

[Tom Hubin <thubin@xxxxxxxxx>]

Dr. George A. Themelis wrote:
> 
> Hello Tom,
> 
> >> My next project: "Stereo Projection".  I will use the very common
> >> TDC projectors as the basis to explain stereo projection.
> 
> >I may be able to give you some technical info.
> 
> I know and I hope so!  A good author must pick good sources and I see
> you have become quite an expect on the subject.  You are at the top
> of my list, along with other experts in stereo projection, like Bob
> Brackett, Jon Golden, John Roll, Bill Duggan, Bob Aldridge, Colin Clay
> and others.
> 
> The only book on stereo projection I am aware of is Earl Krause's
> "Three-Dimensional Projection" published in 1954.  I think it is
> about time for a new reference on this subject.  Will be talking
> through the course of the year.
> 
> George Themelis

Hello George,

I did some math about a year ago for setting up a projector, screen,
audience combination using some info that I got from the DaLite website.
I worked out the math so that you could start with the number of people
in the audience and the viewing angle for the screen and compute the
recommended trapezoidal arrangement for the seats, location of
projector, projector lens focal length, screen size, etc. It seemed like
a practical way to plan for a show at a convention. I never published
the info. I just did it out of curiosity when I was exploring the
guidelines for projection. Anything like that of use to you? I
considered doing a spread sheet but never got to it.

Tom Hubin
thubin@xxxxxxxxx



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