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Old 10-07-2009, 08:36 PM #1
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Default Opinions wanted on use of old movie screens

What about using an old 8mm movie projector screen for lumia. spiro etc. The second hand shops are practically giving them away= I have three 'regular' sized ones and I got a 6 footer from a hotel 'garage' sale($5) that I attached to the ceiling in my 'laser room', makes even low powered lasers show nicely and when I dont want to use it it rolls back up. Another 'hakzaw1 find of the day'-- thanks to all for your opinions. ;-) Len



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Old 10-08-2009, 02:17 AM #2
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Default Re: Opinions wanted on use of old movie screens

Projector screens are great for their high reflectivity and florescence of bluray.. If you were to set up a RGV scanner (using a bluray diode for the V) it would appear pretty close to RGB, since the florescence of 405nm is pretty damn blue.

Basically they're nothing of interest, though if you need a surface to project a scanned laser image to, a projector screen is a fantastic choice. I'm not sure if your "movie screens" are built using the same materials as standard projector screens, but if they are they're a good surface to project laser images onto.
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Old 10-08-2009, 04:46 AM #3
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Default Re: Opinions wanted on use of old movie screens

Very good idea! Only thing I would worry about is exceeding the MPE from the specular reflections on high power lasers.
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Old 10-08-2009, 06:57 PM #4
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Default Re: Opinions wanted on use of old movie screens

I worry too-like a lot of noobs until a few yrs back I was pretty much not worried about anything but direct hits - I fear I may have watched my home laser show too often and for too long as for the last yr or two my eyesight seems to be worse and when I go outside on a super bright day I need my sunglasses bigtime. OR I'm just getting old - I am not a senoir member(yet) but I am a member and a senoir. And yes I have some really good multi-band goggles but that horse may be out of the barn already- Younger LPF members should take a lesson from my mistakes.---Hak

Last edited by hakzaw1; 10-08-2009 at 06:59 PM. Reason: spellin' again
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