[simpits-tech] DLP Projector Image Issue

[Francisco Picornell]

Room (one car garage) is 14' long (from screen to rear wall). The sim (F-111
fixed base trainer) is 8' long. Crew seating to screen is about 7.5'. The
space behind the screen is maybe 2'. I'm just boxed in. I built a wall
screen and ideally looking for an image that is 10' to 11' wide. I
originally had two 800X600 projectors which worked great except the 1600X600
resolution caused some visual anomalies (floating buildings) using Falcon 4
so I went with a single 1024X768 projector. The projector is currently about
13'(back wall) from the screen and although great quality it is about 25%
smaller than I would like.

Does the mirror have any magnifying qualities or is that handled by varying
the distance between the project, mirror and screen? Can you get a mirror
with larger magnifying qualities to I can lessen the distance between the
components?

Kiko

PS If I get the 1024X768 setup to work, I will have two 800X600 LCD
projectors that will be looking for a home (at an attractive price).

-----Original Message-----
From: simpits-tech-bounces at simpits.org
[mailto:simpits-tech-bounces at simpits.org] On Behalf Of Gene Buckle
Sent: Monday, July 30, 2007 12:15 PM
To: Simulator Cockpit tech list
Subject: Re: [simpits-tech] DLP Projector Image Issue

> I am using a Sharp XR-10X projector to project my front view and I have it
> as far back as possible and the image is just not as large as I wanted.
Can
> I make some sort of magnifier lens to enlarge the image (all I need is an
> image 25% larger).
>

Kiko, you should use rear projection.

You can configure your projector to mirror the image and then project
against a translucent screen like a 200 thread count bedsheet.  Rob and I
did some experiments with this with great success.

One of the test screens we built gave a 5' high by 10' wide image, 2' away
from the eye point.  HUGE difference. :)

g.
 --
"I'm not crazy, I'm plausibly off-nominal!"

Proud owner of F-15C 80-0007
http://www.f15sim.com - The only one of its kind.

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Thanks!