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Projecting thru glass
I just received my Panny AE900U and mounted it in the Equipment Room. It will project thru a hole in the wall, similar to a movie theater, onto a screen.
I need a piece of glass to project thru but also reduce the audio entering the ER. Is there special high quality glass available for this purpose? Maybe the insulated kind that is two pieces of glass separated by a dead air space? Who sells these items? Websites on the topic?
Take Aim
I need a piece of glass to project thru but also reduce the audio entering the ER. Is there special high quality glass available for this purpose? Maybe the insulated kind that is two pieces of glass separated by a dead air space? Who sells these items? Websites on the topic?
Take Aim
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Thanks for the info. To simulate insulated glass to cut down on sound transmission, I wonder if mounting one 5X7" piece then maybe some foam insulation along the edges followed by a second 5X7", might work. I can only assume the projection thru this high quality glass would be minimally affected.
Take Aim
Take Aim
I have and use a 5 x 7 piece. The sound diminishs quite noticable. the face of opening is 3/4 inch MDF.
What about keeping all the optics clean? Would that help or hurt?
Somewhat relatedly, has anyone projected through a mirrored surface? I'm doing something similar to takeaim, but would like to actually conceal the projector if possible in the wall, perhaps building a mirror to project through ... is this possible without noticably altering the image? Thanks!
I have built a platform that the AE900U sits on and projects thru the wall. Above the projector is a small exhaust-type fan salvaged from a commercial printer. Around the projector is painted flat black and along the back of the proj will be a curtain made of GOM #408 black hung similar to that of a bathroom curtain.
Looking at the proj from inside the HT should only show the lens and everything else will be black or nearly black, even if the Equipment Room lights are on.
The proj will shine thru glass, similar to that of a movie theater. I'll be calling Edmund Optics on Monday to see if I can mount two pieces of their 8x10" glass separated by foam rubber of even 1/4" and then the ends sealed with maybe Liquid Nails or some other adhesive. In a sense, it resembles two panes with a dead air space. My question relates to the optics thru two pieces of glass and also the image that is not necessarily perpendicular to the glass. I don't want the image affected, but I do want the sound transmission minimized.
Take Aim
Looking at the proj from inside the HT should only show the lens and everything else will be black or nearly black, even if the Equipment Room lights are on.
The proj will shine thru glass, similar to that of a movie theater. I'll be calling Edmund Optics on Monday to see if I can mount two pieces of their 8x10" glass separated by foam rubber of even 1/4" and then the ends sealed with maybe Liquid Nails or some other adhesive. In a sense, it resembles two panes with a dead air space. My question relates to the optics thru two pieces of glass and also the image that is not necessarily perpendicular to the glass. I don't want the image affected, but I do want the sound transmission minimized.
Take Aim
I will be doing the same as you. My projector will be mounted in the furnace room behind the theater.
I'm not sure about Flordia but where I'm from insulated sealed unit glass is common in construction. I used to work for a small custom window and door maker and we used to make our own small sealed units. You'll probably be able to find someone in your area that does it. Call small a sealed unit glass maker or window maker and see if they can make a sealed unit for you using your optical glass.
I'm not sure about Flordia but where I'm from insulated sealed unit glass is common in construction. I used to work for a small custom window and door maker and we used to make our own small sealed units. You'll probably be able to find someone in your area that does it. Call small a sealed unit glass maker or window maker and see if they can make a sealed unit for you using your optical glass.
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Make sure that you clean your air filters very often, or you'll have trouble. Furnace rooms generally are quite dusty, and unless you are sure that your furnace room is really clean, I would clean your filters on a weekly basis.
If you don't mind me asking, why do you want to mount the PJ outside of the room? Is it to eliminate fan noise? You know, most newer PJs are pretty quiet - with mine almost directly overhead, I only hear the fan during the quietest of scenes, and it certainly isn't distracting. Just something to consider...
Mark
| My projector will be mounted in the furnace room behind the theater. |
If you don't mind me asking, why do you want to mount the PJ outside of the room? Is it to eliminate fan noise? You know, most newer PJs are pretty quiet - with mine almost directly overhead, I only hear the fan during the quietest of scenes, and it certainly isn't distracting. Just something to consider...
Mark
The best glass for sound is 1/4" Laminated glass. You can get a piece cut to size at a local glass company. It is about $8.00 a Sq Ft. (some have a 3 sq. ft. Min.)It has a vinyl inner layer between the 2 panes of glass. Just like your windshield. I would put 2 pieces separated by a 1 or 2 inch airspace between the panes. (the vinyl stops 99% of the UV light) not sure if projectors put out UV light, but the sun does.
On the subject of One way mirror it is basically bronze glass with a shiny reflection on one side. Put shiny side out in the ht side. The glass is a brown tint so it would be like having a brown filter on a camera lens, so you may have to adjust color to compensate for it. I think I would stick with the clear Laminated glass.
On the subject of One way mirror it is basically bronze glass with a shiny reflection on one side. Put shiny side out in the ht side. The glass is a brown tint so it would be like having a brown filter on a camera lens, so you may have to adjust color to compensate for it. I think I would stick with the clear Laminated glass.
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I want to mount it out of the room for three reasons; asthetics, heat and noise. I don't like the look of the projector hanging in the room, I find the my current projector setup causes my room to get too warm too fast, finally the woooring noise it makes isn't loud but the tone puts me to sleep. haha
I've considered the dust problem. If I find it too dusty I'll build a box that accomidates furnace filters on 4 sides and mount the projector inside it. That should negate the dust issue.
| Originally Posted by VanMark Make sure that you clean your air filters very often, or you'll have trouble. Furnace rooms generally are quite dusty, and unless you are sure that your furnace room is really clean, I would clean your filters on a weekly basis. If you don't mind me asking, why do you want to mount the PJ outside of the room? Is it to eliminate fan noise? You know, most newer PJs are pretty quiet - with mine almost directly overhead, I only hear the fan during the quietest of scenes, and it certainly isn't distracting. Just something to consider... Mark |
I've considered the dust problem. If I find it too dusty I'll build a box that accomidates furnace filters on 4 sides and mount the projector inside it. That should negate the dust issue.
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I'm 100% with you, and am designing an HT with an AV, projector room. Less noise (my Proj is relatively noisey), and I always wanted to have a Projector room to 'conceal' and make the theatre, closer to a Commercial Theatre as well.
| Originally Posted by aaron-b I want to mount it out of the room for three reasons; asthetics, heat and noise. I don't like the look of the projector hanging in the room, I find the my current projector setup causes my room to get too warm too fast, finally the woooring noise it makes isn't loud but the tone puts me to sleep. haha I've considered the dust problem. If I find it too dusty I'll build a box that accomidates furnace filters on 4 sides and mount the projector inside it. That should negate the dust issue. |
Those that are planning on projecting through glass should take note that you should have your glass on an angle so that you don't end up with reflections back into the projector.
Perhaps Edmund Optics can help you on he exact angle.
Craig
Perhaps Edmund Optics can help you on he exact angle.
Craig
Wouldn't you have to worry about refraction of the projector light from some of these suggestions?
Two pieces of laminate glass with an air gap between them I woudl think could cause an issue.
Two pieces of laminate glass with an air gap between them I woudl think could cause an issue.
I may have gotten a beginner at Edmund. She checked with someone and said Edmond never tested projecting thru two pieces of glass with any amount of spacing, never tested for distortion thru two pieces, etc. etc. Basically providing no help to me. So I ordered 2 8X10" pieces and will experiment.
In my old house, I had insulated glass in most of the windows. I toyed with having a piece made but was unsure about the quality when compared to the supposedly anti-reflective glass of high quality from Edmund.
My HT was built to resemble a movie theater. It was a "bedroom" built without a closet. The adjacent room is a bathroom. I converted the bath closet to my Equipment Room. I got the ER idea from looking at the commercial ER at the office I work at.
My ER has the Middle Atlantic Slim 5 rack and a big USTech panel with bunches of wires for whole house audio, cable TV everywhere, DirecTV feeds, telephone, burglar alarm, and local area network. There is a quiet exhaust fan in the ceiling.
In the ER is a platform about 90" high that the AE900U sits on and projects thru a hole in the wall which is two layers of 1/2" drywall with Green Glue.
I might go get a piece of insulated, non-tinted glass as an alternative to the Edmund glass and see what happens.
Take Aim
In my old house, I had insulated glass in most of the windows. I toyed with having a piece made but was unsure about the quality when compared to the supposedly anti-reflective glass of high quality from Edmund.
My HT was built to resemble a movie theater. It was a "bedroom" built without a closet. The adjacent room is a bathroom. I converted the bath closet to my Equipment Room. I got the ER idea from looking at the commercial ER at the office I work at.
My ER has the Middle Atlantic Slim 5 rack and a big USTech panel with bunches of wires for whole house audio, cable TV everywhere, DirecTV feeds, telephone, burglar alarm, and local area network. There is a quiet exhaust fan in the ceiling.
In the ER is a platform about 90" high that the AE900U sits on and projects thru a hole in the wall which is two layers of 1/2" drywall with Green Glue.
I might go get a piece of insulated, non-tinted glass as an alternative to the Edmund glass and see what happens.
Take Aim
Quote:
Hmm. thanks for the comment Craig. I actually was wondering about reflections, but figured as optically pure glass that magically fixed it! How ignorant am I?
The best solution then (in terms of angle) is to angle it slightly more forward at the top, and slightly recessed at the bottom. I'd hate to have the glass angled slightly more to the left, than to the right sied of a frame. People would just think that it was a mistake in design. =>
| Originally Posted by suffolk112000 Those that are planning on projecting through glass should take note that you should have your glass on an angle so that you don't end up with reflections back into the projector. Perhaps Edmund Optics can help you on he exact angle. Craig |
The best solution then (in terms of angle) is to angle it slightly more forward at the top, and slightly recessed at the bottom. I'd hate to have the glass angled slightly more to the left, than to the right sied of a frame. People would just think that it was a mistake in design. =>
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