I dunno if this will help, but I just found this:
It looks kinda weak but it does say 7x4 feet. I dunno how that would hold up against a LCD though.
From BGMicro.com
An externally hosted image should be here but it was not working when we last tested it.
It looks kinda weak but it does say 7x4 feet. I dunno how that would hold up against a LCD though.
From BGMicro.com
Just to point something important out...
Humans cant see the IR spectrum of light... can you see the light on a remote control? no... this would be bright, but too bad we cant see that wavelength of light.
Humans cant see the IR spectrum of light... can you see the light on a remote control? no... this would be bright, but too bad we cant see that wavelength of light.
400Watt MH setup: Costs
I just thought I'd let the world know what a light setup can cost.
I've been hesitant to take the plunge, because in looking for parts via the internet, and depending on the choice, you can sheel out HUNDREDS of bucks.
So I went to a place in Calgary called "Commercial Lighting" (look: here's their URL: http://www.comlight.com/ ) and told them what I wanted.
I foolishly asked for a "fixture", which got the salesman off on a bit of a tangent. I *should* have said "socket", which is really what I was looking for.
Anyway, here's the breakdown:
400W Mogul Base clear MH lamp, 4000K: $26
16/3 6' cord & plug: $4.25
400W MH 120/208/240/277V Core & Coil Ballast: $72
Mogul Keyless Socket with Cap: $5
So for $107.25 (Canadian!) I've got the bare bones of the light.
Wiring will happen as time permits.
dave.
I just thought I'd let the world know what a light setup can cost.
I've been hesitant to take the plunge, because in looking for parts via the internet, and depending on the choice, you can sheel out HUNDREDS of bucks.
So I went to a place in Calgary called "Commercial Lighting" (look: here's their URL: http://www.comlight.com/ ) and told them what I wanted.
I foolishly asked for a "fixture", which got the salesman off on a bit of a tangent. I *should* have said "socket", which is really what I was looking for.
Anyway, here's the breakdown:
400W Mogul Base clear MH lamp, 4000K: $26
16/3 6' cord & plug: $4.25
400W MH 120/208/240/277V Core & Coil Ballast: $72
Mogul Keyless Socket with Cap: $5
So for $107.25 (Canadian!) I've got the bare bones of the light.
Wiring will happen as time permits.
dave.
I burned in my OHP today. The bad part is that it gets up to 125F (52C). I'm gonna hook up a computer PSU to it and get some fans running. There's a giant exhaust fan on the side. And I was thinking of putting two 80mm computer fans in the back. Should the fans be blowing in or blowing out of the projector?
Fresnel lenses question.
The only fresnel lens I can find in my Sunny area of Australia seems to be negative fresnels, IE it makes things bigger, so it expands light. I need a positive fresnel correct, one that condenses light?
If so, anyone know where in Australia to get one?
Thanks
The only fresnel lens I can find in my Sunny area of Australia seems to be negative fresnels, IE it makes things bigger, so it expands light. I need a positive fresnel correct, one that condenses light?
If so, anyone know where in Australia to get one?
Thanks
I just bought a projection screen called Visqueen screens. It's similar to Plas-tex, but maybe a little thinner. I haven't heard anybody badmouthing it, and the price was unbelievable ($14 for a 4'x7' shipping is free). you can find him on eBay and order CUSTOM sizes for super cheap. I'll tell everyone how it is when I receive it in the mail.
someone seen the DIGITAL dlp projecition of star wars 2?
I watched it from 10 rows and then 20 rows back It is really annoying and little lines everywhere like rectangles.
the dlp is not that good I think A little bit annoying. It has a vibraincy but it is not going to be areally good system for a few more years I think till they get that resolution 4 or 5 times better
I prefer to watch that movie with the film one. It is more a fluid like style, by far
I think lcd may look better than dlp because lcd can be more soft looking
the yoda in a thopter scene coming to save in the colisium battle with red blue intense lasers everywhere is more bright and intense but to many little block like looking things in the picture.
I watched it from 10 rows and then 20 rows back It is really annoying and little lines everywhere like rectangles.
the dlp is not that good I think A little bit annoying. It has a vibraincy but it is not going to be areally good system for a few more years I think till they get that resolution 4 or 5 times better
I prefer to watch that movie with the film one. It is more a fluid like style, by far
I think lcd may look better than dlp because lcd can be more soft looking
the yoda in a thopter scene coming to save in the colisium battle with red blue intense lasers everywhere is more bright and intense but to many little block like looking things in the picture.
must have been a lower level DLP projector then...
ive seen a sigma grand with a progressive scan line doubler, and ill tell you what, it looked amazing. the projected image easily rivaled a plasma screen. of course, this projector cost $25K...
ive seen a sigma grand with a progressive scan line doubler, and ill tell you what, it looked amazing. the projected image easily rivaled a plasma screen. of course, this projector cost $25K...
made by TEXAS INSTRUMENTS
it said texas intruments on the dlp handouts they gave and that it is produced by the aviaiton company Boeing. they make jets and engines oand this is from star theaters
it is to sharp! little blank lines are everywhere up and down I would not buy that one even if i could afford it
words coming up at the begining of the movie had the jiggies all over them
I saw it at the star empire theater in times s'queer nyc -yep
usually i thought nyc would have the tops and in the square to!
something wrong maybe or it sucks
it said texas intruments on the dlp handouts they gave and that it is produced by the aviaiton company Boeing. they make jets and engines oand this is from star theaters
it is to sharp! little blank lines are everywhere up and down I would not buy that one even if i could afford it
words coming up at the begining of the movie had the jiggies all over them
I saw it at the star empire theater in times s'queer nyc -yep
usually i thought nyc would have the tops and in the square to!
something wrong maybe or it sucks
FIY, ALL dlp units are made by TI, they hold the patent.
secondly, as you said, boeing makes airplanes and jets. how does that relate to projectors? oh, it doesnt.
DLP comes in SO many different designs, and the thing is that is needs many many processors to get a great signal out. farounda (or something like that) makes a $5K engine to process signals for DLP, and there are a few others. if its just straight DLP, then it will be kinda iffy. but go out to a local hi-fi store, and check out a nice higher end one ($20K+), and you will be blown away.
looks like a plasma screen on the wall....
secondly, as you said, boeing makes airplanes and jets. how does that relate to projectors? oh, it doesnt.
DLP comes in SO many different designs, and the thing is that is needs many many processors to get a great signal out. farounda (or something like that) makes a $5K engine to process signals for DLP, and there are a few others. if its just straight DLP, then it will be kinda iffy. but go out to a local hi-fi store, and check out a nice higher end one ($20K+), and you will be blown away.
looks like a plasma screen on the wall....
Actually Boeing does has something to do with it. They don't just make Airplanes and engines, they make Satellites, some of which are being used for a new distribution system being trialled by DLP cinema's ATM. It's at the Boeing Digital Cinema part of their site:
http://www.boeing.com/defense-space/space/cinema/flash.html
http://www.boeing.com/defense-space/space/cinema/flash.html
lttle on the edgey?! Just know what I saw
maybe boeing should not be working with barco to
It said they are working together barco is according to some av mag at the library "a phenomonel producer of superior eqiupment in the video world"
I dont know why a jet companys working that -sure is queer
maybe the projectionist was getting funky with the machine or maybe a bad unit I snuck into the other theaters and they had the exacto same look
maybe there was something wrong with ITexas Instruments or boeiing or barco or star theaters hell if i know
maybe boeing should not be working with barco to
It said they are working together barco is according to some av mag at the library "a phenomonel producer of superior eqiupment in the video world"
I dont know why a jet companys working that -sure is queer
maybe the projectionist was getting funky with the machine or maybe a bad unit I snuck into the other theaters and they had the exacto same look
maybe there was something wrong with ITexas Instruments or boeiing or barco or star theaters hell if i know
barco makes sweet projectors, but they are all CRT from what i udnerstand... i dunno, maybe they just dont know how to use DLP fully.
but all the higher end DLP i have seen have looked amazing.
but all the higher end DLP i have seen have looked amazing.
Not bad mouthing star
it was amc
maybe barco doesnt know what they are doing
hope to see a better dlp one someday
it was amc
maybe barco doesnt know what they are doing
hope to see a better dlp one someday
Progress!!
Well I thought Id let yall in on my progress, I made this today in about 6 hours.
Sorry for the long post but I thought yall had to see this.
Well I thought Id let yall in on my progress, I made this today in about 6 hours.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Sorry for the long post but I thought yall had to see this.
Light source
Marklar,
Thanks for posting your pictures. Now I'm full of questions!
Looks like a really nice parabolic reflector, but with everything closed in around the bulb, like that added ring on the front, won't it overheat like happened to undream with the foil?
Does that ring have some sort of condenser lens in it? I thought we had to have a point light source to get a sharp projected image.
Marklar,
Thanks for posting your pictures. Now I'm full of questions!
Looks like a really nice parabolic reflector, but with everything closed in around the bulb, like that added ring on the front, won't it overheat like happened to undream with the foil?
Does that ring have some sort of condenser lens in it? I thought we had to have a point light source to get a sharp projected image.
Nice job, Marklar! I plan to start my enclosure soon, so that is helpful.
Several days ago, I had mentioned some smearing anomalies on my projected image that I could not figure out, and thanks to everyone that tried to help me out. Well, it turns out that I have two dirty lenses...contact lenses! Good grief. I feel dumb. I guess I've been wearing them too long studying lately, and they needed to be replaced. No more smearing...great picture! Sorry to bother you guys with that. I should have checked the obvious first.
Good luck, everyone! And let's keep it clean! 😉
-f4
Several days ago, I had mentioned some smearing anomalies on my projected image that I could not figure out, and thanks to everyone that tried to help me out. Well, it turns out that I have two dirty lenses...contact lenses! Good grief. I feel dumb. I guess I've been wearing them too long studying lately, and they needed to be replaced. No more smearing...great picture! Sorry to bother you guys with that. I should have checked the obvious first.
Good luck, everyone! And let's keep it clean! 😉
-f4
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