janX
I have some REALD 3D glasses that I got from Avatar, and was wondering if they can be used on a home television?
I'm assuming that as long as you have a properly rendered 2D image that this is possible, but maybe there is something special about the screen used at the theaters.
Follow up question...is this the same for IMAX 3D, Dolby 3D etc...
Answer
There is something special about the screen, but there is also something special about the projector and the glasses themselves.
The key to the technology is that light can be polarized or filtered into different types of light. For example, you can have vertically polarized light and horizontally polarized light. This is not visible to you because our eyes can't distinguish between horizontally or vertically polarized light, it just looks the same to us either way, but this distinction is very important because the 3D glasses are designed to filter all polarized light of one type into one eye, and polarized light of another type into your other eye.
To do this, digital 3D theaters use one of two methods. Either
A) The theater uses two different projectors, each with a different type polarizing filter on the lens. One projector projects the left-eye view and the other projector projects the right-eye.
OR
B) The theater uses one projector with a special polarizing device which quickly flips the polarization many times per second in synchronization with the 3D film so that it uses one type of polarized light for the left-eye and another type for the right-eye image.
The problem is a standard white coated cinema screen does not reflect all types of polarized light. So the 3D effect is very poor. Therefore, theaters need to install new "3D Screens" that are coated with a layer of silver and act somewhat like a mirror to reflect as much of the light as possible.
The 3D glasses are really just polarizing filters. The left-eye lens is polarized in the same way the left-eye projector is polarized, and vice versa for the right-eye lens.
The result is each eye sees a different perspective. The 3D video is shot by a dual-camera setup with two cameras about eye-width apart. This simulates the perspective you would have in each eye if you were actually there in place of the camera. If you playback the left camera video into your left eye and the right camera video into your right eye, you can see that 3D perspective just as if you were there.
-
So the short answer is no. There are no consumer technologies available on the market today for you to use the polarized glasses with.. however having said that 3D is coming to the home soon!
This summer, many manufacturers are going to be releasing 3D TVs that can display full color HD 3D video. Most of these TVs will use a different technology (shutter-glass 3D) instead of polarized 3D though (although some 3D TVs are expected to use the polarized method.
If you're really ambitious enough, you can build your own 3D polarized home theater with two DLP projectors, special silver-based paint for the screen, a couple of polarizers and a bunch of RealD glasses.. but this would come with a big price tag and a lot of work.
There is something special about the screen, but there is also something special about the projector and the glasses themselves.
The key to the technology is that light can be polarized or filtered into different types of light. For example, you can have vertically polarized light and horizontally polarized light. This is not visible to you because our eyes can't distinguish between horizontally or vertically polarized light, it just looks the same to us either way, but this distinction is very important because the 3D glasses are designed to filter all polarized light of one type into one eye, and polarized light of another type into your other eye.
To do this, digital 3D theaters use one of two methods. Either
A) The theater uses two different projectors, each with a different type polarizing filter on the lens. One projector projects the left-eye view and the other projector projects the right-eye.
OR
B) The theater uses one projector with a special polarizing device which quickly flips the polarization many times per second in synchronization with the 3D film so that it uses one type of polarized light for the left-eye and another type for the right-eye image.
The problem is a standard white coated cinema screen does not reflect all types of polarized light. So the 3D effect is very poor. Therefore, theaters need to install new "3D Screens" that are coated with a layer of silver and act somewhat like a mirror to reflect as much of the light as possible.
The 3D glasses are really just polarizing filters. The left-eye lens is polarized in the same way the left-eye projector is polarized, and vice versa for the right-eye lens.
The result is each eye sees a different perspective. The 3D video is shot by a dual-camera setup with two cameras about eye-width apart. This simulates the perspective you would have in each eye if you were actually there in place of the camera. If you playback the left camera video into your left eye and the right camera video into your right eye, you can see that 3D perspective just as if you were there.
-
So the short answer is no. There are no consumer technologies available on the market today for you to use the polarized glasses with.. however having said that 3D is coming to the home soon!
This summer, many manufacturers are going to be releasing 3D TVs that can display full color HD 3D video. Most of these TVs will use a different technology (shutter-glass 3D) instead of polarized 3D though (although some 3D TVs are expected to use the polarized method.
If you're really ambitious enough, you can build your own 3D polarized home theater with two DLP projectors, special silver-based paint for the screen, a couple of polarizers and a bunch of RealD glasses.. but this would come with a big price tag and a lot of work.
I watched Avatar in 3D on my hdtv (that is also a 3D tv) and while the movie was good and the visuals?
T
looked good, I still wasn't WOWED like I was hoping. I'm still trying to find that movie that just wow's me completely visually, but so far nothing has, the only thing that has come close was watching How the Universe Works on Blu Ray (due to visuals when it came to the sun), if they had that on 3D I would get it and watch it.
What are some good movies/documentaries that can wow me? Or might it take a while till new technology comes out and our TV have a higher resolution? Or is this just a never ending thing? I want to be magnificently impressed by something very very visually pleasing. Or how are those IMAX movies? Is there one in Wisconsin? If you've seen an IMAX movie how was it for you visually?
Answer
This is just my opinion:
If 3d is important to you then the biggest screen you can buy is the best choice as long as it is Full-HD (1080p res). However on a 50"-60" HDTV LED,LCD, or Plasma, whatching 3d is like looking through a window. On a huge screen like a hometheater dlp 3d projector with 120" screen, your "within" the movie since your peripheral vision are covered by the video Downside is you have to have a dedicated lighting controlled room. Good thing is that home theater DLP 3D High-Def projectors are now cheaper that the smart tvs. If you want to be magnificently impressed then it's time for a projector. BTW have you seen Prometheus in IMAX 3D theater? The story is par to me but the visuals and effects are great.
This is just my opinion:
If 3d is important to you then the biggest screen you can buy is the best choice as long as it is Full-HD (1080p res). However on a 50"-60" HDTV LED,LCD, or Plasma, whatching 3d is like looking through a window. On a huge screen like a hometheater dlp 3d projector with 120" screen, your "within" the movie since your peripheral vision are covered by the video Downside is you have to have a dedicated lighting controlled room. Good thing is that home theater DLP 3D High-Def projectors are now cheaper that the smart tvs. If you want to be magnificently impressed then it's time for a projector. BTW have you seen Prometheus in IMAX 3D theater? The story is par to me but the visuals and effects are great.
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Title Post: Can RealD 3D glasses be used at home? (IMAX, REALD, DOLBY 3D)?
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