Lumenlab > Small RPTV Lens

Lumenlab > LLAVS: Lumenlab AVS > Advanced Projector Builder > RPTV

yenthe

Jul 2 2008, 11:11 AM

Hi everyone.

I've been using Lumenlab for a while now, and I would like to thank eveyone for the info I found with building my DIY-Beamer.

Now... I would like to start a new project, but I've got some questions about my building plans...

I would like to use a lens with a really small Focal Length. 70MM FL. But I'm not sure if this is possible. (I've never seen anyone using such a small Focal Length

).
I thought it might be too close to my LCD, witch would result that not my entire LCD would be projected..

My Lens: http://www.surplusshed.com/pages/item/pl1006.html
My FocalCalc calculations: http://c.imagehost.org/0242/A.jpg
Any ideas or info?

Thanks!

amateurhour

Jul 2 2008, 01:45 PM

QUOTE (yenthe @ Jul 2 2008, 06:11 AM)

Thanks!

There's two good PSone builds where they used a lens directly against the PSone lcd avoid fresnals. I can never seem to find the lens they use on the linked site, but it's there, somewhere.

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