Rear Projection

[jmig]

Has anyone done rear projection? If so, what did you use for the screen and what kind of results did you have?

In reading DIY forums on rear projection it seems people are getting mixed results unless they go to an expensive rear projector screen.

As I mentioned in my thread on projectors, will have shorter throws and smaller viewing images help or hurt us with rear projection?

[Trevor Hale]

John,

for years, I used Rear Projection, and was happy with it. I used a good quality 150 Thread count Bed sheet curved, and had quite good results. However, that being said, I am now moving to front projection curved, as with the rear projection I lost a lot of the night textures and the lights were too spotty.

Hopefully I will get better results this way.

Trev

[Westozy]

Hi John,

My set up uses rear projection onto a 230 thread count sheet. (Higher the thread count the better). I have the sheet stretched across a 16:9 rectangular frame made from 2" PVC pipe and elbows. The screen is mounted to the sim frame about 600mm from the windshield frame and it all works fine. The other side of the screen is our home theatre for watching movies etc.

Gwyn

[David Withers]

when compared to front projection....higher thread count is better....ie 1000 count will block hot spot etc..AND CATCH MORE LIGHT....hence you will see more detail.
colours will be blander and dimmer.....pixels will be blended better though.

it will all seem a bit "fuzzier".......sometimes that is nice.


but...front projection with or without a mirrior is way better if you can.

[Hardlight]

I agree that if you can get the correct distances front projection is the best way forward.

You may find this link useful.

http://www.hometheatershack.com/foru...iscussion.html

I talks about different coatings you can put on a screen to improve picture quality (for front projection).

I think a coating such as the ones mentioned would be particularly useful for people who construct their own sometimes curved screens.

Kind Regards,
Will

[jmig]

I have an idea I want to bounce off you guys to see if it might work or if it is hair-brained.

I don't fly one airplane. I fly anything from Alaskan bush planes to jet fighters. They all have different panels and panel looks.

My idea is this: I take off the top 1/2 of my instrument panel, leaving the bottom half for switches, rotaries, etc. I mount a screen close to where the instrument panel would be and extending above and to the sides.

Using rear projection and IR Track, the aircraft's panel would be displayed on the lower part of the screen, as it looks on a monitor, and scenery on the rest.

Would that work? anyone tried it?

[Crescent]

This is exactly what I've decided to do with my Lancaster. The main reason I went with this is because I will primarily be using the sim for Battleground Europe which doesn't allow the different views like FSX does. The reaason is because it's a war simulator your only view would be in the cockpit anyway. I use trackir with it as well.

I will fill in the panel below the screens with whatever you normally wouldn't see while looking ahead and this should be a good compromise.

[Polmer]

I too am restricted with space to display a front image with the projector I currently own ( Epson PowerLite). I know there are short throw projectors available,but right not, its not in the budget.

Yesterday, I purchased a $8 white opaque shower curtain.
It initially had some folding wrinkles in it, but after removing them and then tightly stretching the vinyl material the result was pretty good.

I got the idea from this blog;

http://cmpalmer.blogspot.com/2006/08...v-project.html


I do lose some brightness compared to the front image, and Im wondering if a projector with higher lumens wouldn't have this issue(mine only has 1500). I have not tried a high tread count sheet yet, but will give it a go and come back with the comparison results.


~Polmer

[Matt Olieman]

Speaking of "Rear Projection" .... For those in the USA and have watched some of the political conventions, and the rear projection, it's amazing. I even see curved screens, and the visibility is fantastic from all angles. I should like to know what screen material they are using.

Anyone know anything about this, please share

Matt Olieman

[Bob Reed]

Speaking of "Rear Projection" .... For those in the USA and have watched some of the political conventions, and the rear projection, it's amazing. I even see curved screens, and the visibility is fantastic from all angles. I should like to know what screen material they are using.

Anyone know anything about this, please share

Matt Olieman

I think one of the folks who would know is Matt Ford.. Try dropping him a line...