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Why do RealD 3D glasses work differently forward than backward?
HarryNose
Experiment 1: hold both glasses in front of each other, facing away. Rotate one set while looking through both; the view won't be blacked out. Now turn one set around to face you and repeat. The view will be blacked at some angle.
Experiment 2: Hold the glasses (one set, facing away from you) in front of a Notebook LCD screen (mine is a MacBook Pro) and rotate them. The colors will shift slightly (brownish to blueish) but will never black out for either eye. Now turn them around so they face you and repeat. At some angle both glasses will black out.
Questions:
- why does it matter if they face you or not?
- why does rotation matter? (RealD-3D supposedly uses circularly polarized filters - should be rotation insensitive)
Wiki User
∙ 13y ago
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Can some blind people watch movies?
I'm monochromatic colorblind and IMAX and RealD don't work for me. The old glasses, with the solid red and solid blue lenses, worked okay. It's probably different for people with less severe cases.
What type of movies can be seen at AMC 24 Willowbrook in Texas?
The type of movies able to be viewed at the AMC 24 screen theater in Willowbrook, Texas are most of the current and mainstream movies that are out for public release. These can be experienced in some formats of IMAX as well as RealD 3D.
What is an amc theater gold ticket?
An AMC Gold Experience ticket is a movie pass that allows you to go in and see any AMC movie - valid for one person per Gold ticket. However, surcharges may apply for special events and for enhanced movie experiences, such as RealD 3D, IMAX, and ETX films. Please contact your local theatre for specific details.
Is an UltraAVX theater better than imax?
Yes, as Imax is not true digital video/audio and Ultra AVX is full digital thus Ultra AVX give true HD quality audio and video as well as Enhanced RealD 3D picture and sound. The only thing better about Imax is that it has a bigger screen but that isn't an issue; because the Ultra AVX makes you feel like you're there in the movie!
Why do Real D 3D glasses work in the cinema but they wont work with any other 3D images at home Are there any images that do work?
Real D 3D movies work by projecting two copies of the movie onto the screen, one after the other in quick succession. One series of frames is from the perspective of the left eye, while the other is from the perspective of the right eye. The left and right projections have different light polarizations. The left lens of the 3D glasses allows the light from the left projection to be seen by the left eye, but prevents light from the right projection being seen by the left eye. The right lens does the opposite, allowing only the right projection's light to be seen by the right eye. This has the effect of making the right and left eyes see slightly different versions of the movie, each from a different perspective, just as occurs when viewing a real-world scene. The human brain naturally combines the two two-dimensional images into a single, 3-dimensional scene.This doesn't work at home on a television or monitor because the monitor is not projecting two different images and even if it were, it can't polarize the light from each image so that it's filtered by the lenses.In Addition:Traditional red / blue 3D images use the same principal of filtering light for each eye, but use color as the filter instead of polarization, and therefore do not work with Real D 3D glasses.The glasses themselves are not tailored to a specific movie or theater. Real D 3D glasses should work with any Real D 3D movie.Real D 3D is a proprietary item belonging to REALD the company and in essence what happens is movie theaters buy a item that fits over the lens of their projector that projector shoots the image through REALD'S apparatus and then projects onto the screen therefore without that apparatus you have no REAL D 3D and rather only 2D... hope that helps ...check out amazon though for some more comfortable 3D glasses rather then the cardboard stuff.The "3d glasses" have a horizontally polarized filter in the left lens and a vertically polarized filter in the right lens. The cinema uses a projector with two separate images on the film. The left image is projected through a horizontal polarizer and the right image is projected through a vertical polarizer. The two images have slightly different 'perspectives' because they were recorded using a camera with two lenses, one for left, the other for right (just like your eyes). This system generates a combined stereoscopic image which is synchronized and which is how the 3D effect works. Incidentally the sound is recorded in the same way which is how you get stereo (or even surround sound) in the cinema.As you probably now realize, you cannot reproduce this effect with your home cinema or TV system because you don't have the two separately polarized images. TV's only give un-polarized light and home cinemas don't have the polarizers fitted either.If you wanted to reproduce the effect at home, you would have to have both the left and right polarized images projected from separate sources, and since only the cinemas have access to them its very unlikely that you could replicate the system.The above answer is correct for the recording process and discusses basically how 3D movies work, Real D which is what asked works as follows; Its nothing to do with the curvature of the screen sorry to say, the only impact the screen in the cinema has is how much light it reflects back to the eye. (IMAX screens have a silver reflective paint for example to make sure the ray of light are reflected straight and strong to your eye).The reason why, much to my disappointment, you can't have 3D movies on your home TV is because of polarization, which is how the 3D thing works. The projector in the cinema projects alternate frames, each frame from a slightly different perspective to create the 3D stereoscopy. Basically each alternate frame uses a different circular polarization, L frame is clockwise, R frame is anti-clockwise. Those 3D glasses you use are also polarized, the left eye with a clockwise filter, the right with an anti clockwise filter. So the left eye only lets in frames frame one perspective and the right eye from the other.So to answer you question, the reason why that doesn't work on your home TV, is because the TV can't produce polarized images, let alone alternating frames with different circular polarization attributes. So if you want 3D at home, either wait to purchase a 3D TV along with 3D blu-ray, use the dodgy red blue (found in Shrek and others), try out nvidia 3D vision or play around with existing 3D monitors like Zalman.
Is the Jonas brothers 3d glasses plasstic?
Yes, they are the RealD glasses.
When was RealD created?
RealD was created in 2003.
What is the symbol for RealD Inc in the NYSE?
The symbol for RealD Inc in the NYSE is: RLD.
In what year did RealD Inc - RLD - have its IPO?
RealD Inc (RLD)had its IPO in 2010.
Can you use reald at home?
No
What is the market cap for RealD Inc RLD?
As of July 2014, the market cap for RealD Inc (RLD) is $522,918,170.56.
Is there a website where you can draw in 3-D without the need for 3-D glasses?
Not unless you have a computer screen that runs at 120 Hertz and supports the RealD 3D and have an NeonVidia GeForce 8000 or better.
Is Blu-ray 3d reald 3d?
3d is 3d. its just 2 images one for left and one for right. RealD is one system for taking the 2 images and polarising them to block the opposite eye. Most home theatre systems have been using XpandD aka flicker or shutter, which uses a synchronised LCD shutter in the glasses to block opposite eye. JVC developed a polarising system for the home that uses alternating rows of polarising filters in the TV screen itself. this system allows you to use RealD glasses at home. however it also reduces the image quality in half, making your 1080 into 540 or standard def.
What services are offered by the Real D website?
RealD is a leading technology developer and supplier of quality 3D visualization tools. The website provides information on the products available from RealD.
What glasses do i need for the sbs 3d?
I've seen a video of a guy with a 42' inch Vizio using RealD 3D glasses and it looked good through the camera. The video has a lot of likes So it must have worked for many others. But I can't seem to get it working the same way on my 24' Playstation Display.
Is going to see a 3D film any good if you already wear glasses that you would need to see the movie and does 3D take away from the experience?
No, however the two most popular 3D technology companies in the theaters are RealD and Master Image. So your glasses have to correspond to their format. I know a company, Visual World Products, that makes 3D glasses that work on both formats perfectly.
Can some blind people watch movies?
I'm monochromatic colorblind and IMAX and RealD don't work for me. The old glasses, with the solid red and solid blue lenses, worked okay. It's probably different for people with less severe cases.
