Stretching the imagination at DVinfo.net

Steven Davis · December 20th, 2006, 08:47 AM

Ok, the preface to my idea is that I am failing to find a decent lcd/plasma that I can use at wedding shows etc to show my demos.

So I came up with the following idea.

What if, I took a projector, shot it on the backside of a piece of glass/plexiglass, flipping the image so it shows correctly on the opposite side of the glass. I've never tried it, and I wish I had a projector on hand. But for those who are smarter than I, what do you think?

I know I would have heat issues related to the projector. It also would look unconventional at the show. I called a projector sales person, they told me to just try it. But before I go buy glass or whatever, I wanted to get some feed back from my dvinfo friends.

Daniel Schaumberger · December 20th, 2006, 09:32 AM

Hi Steven,

yes that works but a piece of plexiglas for a big presentation is too expensive and you cant fold it. Go and buy yourself a canvas for backprojection thats a much way cheaper. Just google around.

http://www.art-evolution.de/avleinwaende.html

Daniel

Steven Davis · December 20th, 2006, 09:42 AM

Thanks Daniel,

Yeah, one of the issues I have related to the LCD/Plasma, is the booths at wedding shows only put about 4 feet between your viewer and the screen, so most of the flat screens look bad at that distance.

I went to the link you provided, thank you very much. I'll look for the english translation or get a web utility to translate it. Rear projection to canvas might be a good option.

Still thinking and researching.

Daniel Schaumberger · December 20th, 2006, 01:02 PM

I tried rear projection with such a canvas and the quality was great and the best is you dont get the shadows from your audience on your image.
If you want the distance between projector and canvas to be closer screw a 0.5 wide angle lens from a digicam on your projector. I succeeded to get a 4x3 meter image with a projector-canvas distance of 1.80 meters.

Here are some englisch links for rear projection screens:
http://www.da-lite.com/products/inde...aab7bb81c46eb8

http://www.prodisc.com.tw/English/rearprojection-e.htm
http://www.projectorcentral.com/screen-suppliers.htm

best regards
Daniel

December 20th, 2006, 08:47 AM	#1
Steven Davis Inner Circle Join Date: Jun 2004 Location: Richmond, VA Posts: 3,065	Stretching the imagination Ok, the preface to my idea is that I am failing to find a decent lcd/plasma that I can use at wedding shows etc to show my demos. So I came up with the following idea. What if, I took a projector, shot it on the backside of a piece of glass/plexiglass, flipping the image so it shows correctly on the opposite side of the glass. I've never tried it, and I wish I had a projector on hand. But for those who are smarter than I, what do you think? I know I would have heat issues related to the projector. It also would look unconventional at the show. I called a projector sales person, they told me to just try it. But before I go buy glass or whatever, I wanted to get some feed back from my dvinfo friends. __________________ What happens if I push the 'Red' button?

December 20th, 2006, 09:42 AM	#3
Steven Davis Inner Circle Join Date: Jun 2004 Location: Richmond, VA Posts: 3,065	Thanks Daniel, Yeah, one of the issues I have related to the LCD/Plasma, is the booths at wedding shows only put about 4 feet between your viewer and the screen, so most of the flat screens look bad at that distance. I went to the link you provided, thank you very much. I'll look for the english translation or get a web utility to translate it. Rear projection to canvas might be a good option. Still thinking and researching. __________________ What happens if I push the 'Red' button?

December 20th, 2006, 09:32 AM	#2
Daniel Schaumberger Regular Crew Join Date: Sep 2006 Location: Atlantis Posts: 58	Hi Steven, yes that works but a piece of plexiglas for a big presentation is too expensive and you cant fold it. Go and buy yourself a canvas for backprojection thats a much way cheaper. Just google around. http://www.art-evolution.de/avleinwaende.html Daniel

December 20th, 2006, 01:02 PM	#4
Daniel Schaumberger Regular Crew Join Date: Sep 2006 Location: Atlantis Posts: 58	I tried rear projection with such a canvas and the quality was great and the best is you dont get the shadows from your audience on your image. If you want the distance between projector and canvas to be closer screw a 0.5 wide angle lens from a digicam on your projector. I succeeded to get a 4x3 meter image with a projector-canvas distance of 1.80 meters. Here are some englisch links for rear projection screens: http://www.da-lite.com/products/inde...aab7bb81c46eb8 http://www.prodisc.com.tw/English/rearprojection-e.htm http://www.projectorcentral.com/screen-suppliers.htm best regards Daniel