Robert,
This is what we do also. We are actually in the process of upgrading our
setup. The projector
is to be outside of the room but the projected image will travel through an
RF waveguide in the RF
shielding , thereby eliminating the need for a copper mesh. We have found
that the mesh DOES reduce
the image quality to such a degree that we decided on this new option.
Not having to pass through a mesh is imperative if one wishes to present
accurate visual stimuli.
Good luck.
Sincerely,
Chris
~~~~~~~~~~~~~~~~~~~~~~~~~~
Christopher G. Thomas, M.Sc.
Programmer
Dept. of Psychology,
University of Western Ontario
[log in to unmask]
519-661-2111 x.84625
~~~~~~~~~~~~~~~~~~~~~~~~~~
----- Original Message -----
From: <[log in to unmask]>
To: <[log in to unmask]>; Ogg, Robert <[log in to unmask]>
Sent: Thursday, April 20, 2000 12:17 PM
Subject: Re: enclosure for lcd projector
> Hi Robert,
>
> before you start shielding, you may check if you really can not use
> the LCD-projector from outside. We are working this way (from
> outside the scanner room) and I know couple of groups doing it the
> same way. It might be much easier, even if you have to set up one
> mirror or two. The shielding mesh of the window and the window
> itself does not reduce the image quality of the projected screen
> significantly.
>
> Good luck!
>
> Lukas
>
> --------------------------------------------------------------------------
------------------------
> Lukas Scheef, Dipl. Phys.
> MR-Tomography
> Department of Radiology
> University of Bonn
> Sigmund-Freud-Straße 25
> D-53105 Bonn
> Fax: +49-228-287-6093
> Phone:+49-228-287-5870
> E-mail: [log in to unmask]
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