backlighting a frame
backlighting a frame
been asked if i can do a backlight frame for a load of film cells,any one fitted lights in a frame before?with them being original cells is heat going to be a factor in lighting the frame?any ideas would be good at this stage,thinking at the mo of using low heat leds with maybe a mirror behind the lot to reflect the light out through the cells
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Abacus
- Posts: 673
- Joined: Mon 29 Nov, 2010 12:20 pm
- Location: Halifax, West Yorkshire
- Organisation: Abacus Picture Framing and Gallery
- Interests: Picture Framing, Furniture making.
Re: backlighting a frame
I recently did this behind a stained glass window.
I used something like this : (with a power adapter)
http://www.ebay.co.uk/itm/White-Warm-Wh ... 3a7e0003e8
I put an acrylic mirror on the back, then these led strip on their side (so the light wasn't directly up) glued to blocks glued to the mirror, then a piece of clear acrylic with a white vinyl applied to it to diffuse the light, then the stained glass, or in your case the films under glass.
Worked well.
Hth
I used something like this : (with a power adapter)
http://www.ebay.co.uk/itm/White-Warm-Wh ... 3a7e0003e8
I put an acrylic mirror on the back, then these led strip on their side (so the light wasn't directly up) glued to blocks glued to the mirror, then a piece of clear acrylic with a white vinyl applied to it to diffuse the light, then the stained glass, or in your case the films under glass.
Worked well.
Hth
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stcstc
Re: backlighting a frame
there are a few threads on here from people doing led frames inc myself
the trick is to diffuse the light, if you just use the reflection of the mirror you more than likely get hotspots
the other option is you can buy led panels
the trick is to diffuse the light, if you just use the reflection of the mirror you more than likely get hotspots
the other option is you can buy led panels
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simoonez
- Posts: 159
- Joined: Sat 09 Jul, 2011 4:09 pm
- Location: North Dorset
- Organisation: Dorset Framing
- Interests: pasties
Re: backlighting a frame
stcstc is right there - it is all about diffusing the lightsource without getting hotspots.
I made some fairly large backlit panels usings LED lightsheets - diffused acrylic panels with LEDs mounted in the sides http://ledsignlighting.co.uk/led-sheet.htm.
The beauty of these is you can have a very narrow frame, however there are hot spots to the sides where the LEDs are mounted. This means it needs a 20mm opaque border around the edge. Also a larger fitting tolerance is required within the frame as the lightsheets expand when they're on for a while, aparrently by 2% - 4%. You can also get dials to adjust the intensity of the light, but I would only bother with this if it's a fine art work.
If the lightsource (Led grid, or LED ropes are good - http://www.ledwholesalers.com/store/ind ... ductId=520) is behind then it needs to be much deeper/further away from the image to avoid light spots.
I made some fairly large backlit panels usings LED lightsheets - diffused acrylic panels with LEDs mounted in the sides http://ledsignlighting.co.uk/led-sheet.htm.
The beauty of these is you can have a very narrow frame, however there are hot spots to the sides where the LEDs are mounted. This means it needs a 20mm opaque border around the edge. Also a larger fitting tolerance is required within the frame as the lightsheets expand when they're on for a while, aparrently by 2% - 4%. You can also get dials to adjust the intensity of the light, but I would only bother with this if it's a fine art work.
If the lightsource (Led grid, or LED ropes are good - http://www.ledwholesalers.com/store/ind ... ductId=520) is behind then it needs to be much deeper/further away from the image to avoid light spots.
Re: backlighting a frame
thanks guys,gives me something to work on