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Discussion Starter #1
I have an LCD projector at my disposal. I want to create a large floating head over :devil:my cemetary in mid air (like a hologram)

I have a dvd of a head that I can play via my laptop and use the projector on.

Heres my question.

Will an LCD projector display the head on a piece of plexiglass, like the peppers ghost effect? or would I need to use a piece of window screen.

I am trying to make an image similar to the large floating head in the Wizard of Oz so I need it to be somewhat transparent.

Any advice is appreciated

thanks
 

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sounds like a cool project

as for the PG effect - its not really gonna be the same at all - first off for the PG effect - the viewers are only viwing the effect from a certain angle - like in a hallway or looking through a window - if its in a cemetary im guessing it wont be in an enclosed area - thats another thing the PG effect uses - the ability to change lights from the one image/scene to the next - and finally - in the effect, the image isn't projected onto the glass it is reflected by it - making it into a mirror

im prolly not the best to answer this - but i think you should give the screen a try and just see what happens - keeping in mind it should be towards the back so that people are viewing it generally at the same angle no matter where they are standing

also, i might try projecting it onto a haze of fog - i know there was talk on the old methods forum about a hallway that had fine particles dropped or water molecules sprayed and an image was projected on it - when the water/particles was stopped the image would disappear - maybe something like this using fog would work - since you already have the head image, id just play with it as much as you can

good luck and keep us updated - riley
 

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for a transparent, spectral effect I'd say use some lightweight gauzy fabric like tulle or whatever that stuff is called that sheer curtains are made of. If the background beyond the scene is trees or shadows you could blotch-dye it sort of like camo-pattern and the part that doesn't have image projected on it won't show up as much. You could even put a little fan below to make it ripple if you like it shimmery.
 

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I think the plexiglass will work fine, as long as it is a distance shot. You could try a large sheet of clear cellophane, as long as it isn't too windy. The ripples might have a nice dynamic effect.
 

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Wal mart has those "area coolers" that are simply a black plastic hose with a bunch of atomizers that make a water vapor curtain. I think this might work better than anything flat because you can give it the same curve as the face you are projecting. Not perfect, but you might be able to see it from the sides a little better.
 

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Discussion Starter #9
The idea of projecting the head image on mist never occurred to me. Has anyone had any luck projecting an LCD projector onto an outdoor mist cooling system.

I saw a cheapo mist kit online ($24)that consists of a flexible tubing with a couple mist units on it. I dont know know if this would do the trick but if it does I think it might be a really :eek: ominous effect

Any feedback is appreciated
 

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You cannot project an image onto glass. Projecting on mist or fog is extremely complex. It might be possible indoors but not outdoors. I would use a scrim or window screen. Simple and effective, my two favorite words.
 

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Discussion Starter #12
Jim
Thanks for the feedback. You're right.. The more I thought about it the more my head would ache...Is there any specific fabric or store to get a scrim? I have heard the term several times but am not sure exactly where I might find this
 

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your two favorite words huh jim?? well what a coincedence - mine are extreme and complex :) haha - jp in with ya - the screen would no douubt be easier - slightly off topic - but do you remeber the mist image projection we were all talkin about back in the hay days of methods? if i remeber correctly, it was for a hallway - and the mist maker went perpendicular to the hallway right under the ceiling - and it rested on a track that went parallel - so that as the guests were walking down the hall, the image was projected on the mist, and it slowly moved along the track and got up to their face and eventually went over them - giving them a cooling sensation as if a ghost went through them - - is that the way it was or did i just make half that up? its prolly the way it was - too cool of an idea for me to come up with myself - haha - anyway - good luck scare-m! post lots of progress pics
 

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Scare-m, alright, so I'm sure by now you are dead set on using scrim as a projection screen, and people were saying not to use plexi or glass because the image would go right through it, correct...there IS a type of lexan that has a special coating so that an image CAN be projected onto it and no pass through it too much and yet still remain transparent. I saw it on an episode of "Pimp My Ride" (don't ask my why I was watching that), and they used a 10"x12" piece of the material to project video onto it, though I would imagine scrim would be ALOT more on the cheap end than say a $200 piece of lexan that would only be 10"x12", but just thought I'd toss in my two cents worth.
 

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Yes scrim would be alot cheaper I would imagine I think it goes for approximately $45 a yard in a 16 foot width so depending on how much you needed.

And Scrim would store easier than a 10x12 sheet of lexan
 

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slightly off topic - but do you remeber the mist image projection we were all talkin about back in the hay days of methods? if i remeber correctly, it was for a hallway - and the mist maker went perpendicular to the hallway right under the ceiling - and it rested on a track that went parallel - so that as the guests were walking down the hall, the image was projected on the mist, and it slowly moved along the track and got up to their face and eventually went over them - giving them a cooling sensation as if a ghost went through them - - is that the way it was or did i just make half that up? its prolly the way it was - too cool of an idea for me to come up with myself - haha - anyway - good luck scare-m! post lots of progress pics
Wow what a fantastic idea!
 

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Why couldn't you project the image on fog...I seems that you could focus your projector on a certain spot then have a large fogger lay out a clouds of fog every 3 min or so and the face would come and go as the fog was thick enough to hold the image.

The effect I want to try is to project a talking head into a fire. My thought would be to project the image on a large silk flame in the middle of a faux fire. I'm think of using a really large fan (36") that I use in my shop. With multiple layers of silk flames and red /amber LED lighting to give it a fire color.
 

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1031fan: This mister you were talking about, does it have it's own reservoir, or would it have to be hooked up to a water source? Also how would you get the rack to move along the hall? This sounds like a wonderful idea for a hallway, but I'm not that mechanically inclined.
 

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Why couldn't you project the image on fog...I seems that you could focus your projector on a certain spot then have a large fogger lay out a clouds of fog every 3 min or so and the face would come and go as the fog was thick enough to hold the image.
To project onto fog, you need to make a flat fog screen somehow. Shining a projector onto a cloud of fog will not produce a recognizable image. Focusing on one spot doesn't help because the light still bounces off the fog in front of that spot. It would just look like a light.
 

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Wow a flat fog screen...hmmmm that one really gets my brain working...Do you think the image could be seen on a silk fire?
 
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