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I am thinking about building a poster light box as described in several threads here. The designs I have seen use a poster mounted on translucent acrylic panel and then back-lit with flourescent bulbs. Seems like a lot of the issues are finding the right bulbs and ballasts. So after reading these threads I have a couple of questions:


1. Does the backlighting (where light comes through the poster itself) work for "all" posters, or does this require the use of the more expensive double-side printed posters?


2. Is it conceivable to mount the poster on the back of the light box and front light the poster using something light rope light around the box edges? Maybe this would not looks as good since this uses reflected light off the poster instead. Kind of like the difference in viewing a photo versus a slide?


Any comments?


Jim
 

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To answer question 1, yes it will work for both double sided and single sided posters. Will the single sided poster look good backlit, the answer is no. Single sided posters will let to much light through thus giving the poster a washed out look to it. This is really noticeable on the darker colored posters. If you go to ebay and do a search for double sided in the poster category (checking the titles & descriptions box on the search bar) they will range from $0.99 and up I've had good success with artmusicfilm and moviegoods.


Back on the issue of lights if you build a box that is longer than 48" then you can just about find any type of fluorescent fixture because of its popularity. The 36" fixtures are scarce at home centers but if you go to a local electrical supply house you'll find alot of things you can work with, but it will cost a tad bit more.


To answer question 2 if you think it's a problem to find or build lights for a backlit project creating an edgelit box to produce the same effect is much harder to do. If it's a marque you thinking of I can can't help you there.
 

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Here is what I did.


POSTER FRAMES

I also used the Bass Loc frames. I bought 7 in the gold finish, they screw to the wall. They are not stud space mutilples so you must use drywall anchors.


I took two of the frames and built my own backlit frames also. I went whole hog here as my best friend is an electrician and training to be an inspector and he does not let me get away with anything.


My 2 backlit posters are part of our theater entry marquee. On each side of the entry doors are 2 fluted columns framing backlit Bass Industries commercial snap-lock frames with light boxes I built. I removed the wood backing of the frames and replaced it with milk white Plexiglas. Total cost $150 each vs $700. Each light box is 2x4 framed with a 3/8" inset backing. The boxes were lined with sheet metal and have two pairs of 24" fluorescent tubes.(4 total) I think these are 30watts each for a 120 watts total per box. This is the same as the commercial light boxes. Each box is fused for safety.


The white backed posters look milky on the back lit frames so I only use double sided posters in the light boxes. They look very dramatic.
 

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$60

(Found this but I don't know about the quality)
http://www.specialtystoreservices.co...od=pd&p_ID=773
http://www.specialtystoreservices.co...mages/4402.jpg


$85.50
http://www.spotlightdisplays.com/front_~1.htm

(standard border)


$95
http://www.spotlightdisplays.com/widebo.htm

(2.5 wide border)


$99

These are wider than the Bass Loc frames but I've heard that lately it's hard to get in touch with Show Off Displays since their web reconstruction.
http://store.yahoo.net/moviedecor/premsnapfram.html

(2.5 wide border)
 
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