Light Polarization, LCD monitors and adapting them
for natural 3D viewing.
"Warning,,,
Viewing TV's using 3D Shutter-viewing technology may be hazardeous to your sanity (brain) and potentially your health."
At this link,
The Pokeman Incident is described as well as alternative technologies.
Cross-polarized/LCD Screen-pair 3D viewer
Inspiration and orchestration from "On High" Thank-you Jesus!
LCD monitors and other lcd devices use light polarization principles in the generation of images on their screens. When you look at an LCD screen with a pair of linear polarized glassed, darkening will occur as you rotate the glasses to one of several orientations. With a pair of movie glasses i get darkening at 6:00 with one of my laptops. A Sony vaio gives darkening at 3:00. Light polarized projection has been around the 3D industry for many years and it is a somewhat natural way to control which image of a 3D-pair that the eyes are seeing.
This is all about 3D viewing and making a homebuilt picture viewing capability. But, this is also about potentially dangerous technology being implemented by the TV and movie industry in the form of 'shutter' 3D viewing.
To make a somewhat natural polarized-light 3D viewer, Two oppositely polarozed (by 90 degrees) monitors are placed side-by-side and viewed with a paralell viewer to cause a convergence of the monitors while using a pair of linear polarized movie glasses. With this method you can view a full-screen 3D image without the need for red-blue colorization techniques. This does require two images shot using 3D photography methods. This same effect can also be created by looking through a pair of mirrors and movie glasses. I'll get to the details, but first a public service note and product warning.
Now for some concerns about 'shutter' technology usage. The tV industry seemes to be avoiding the simple method (polarization), and instead, creating a market using shutter glasses and flashing alternating images, a real bad idea, if past usage of related concepts is considered. The human eye and brain, especially those of childern, should not be used to experiment with this technology. Ask yourself, do flashing lights appeal or annoy the viewer?
The physiological effects and usages of light pulsation are not unknown to certain people. I rather doubt that they would blow the whissle on the deter-'mental' potential if something can be gained by silence. I'd bet there are some torture and brainwashing specialists that are just rolling with laughter in the hallways at headquarters over what can be sold to the public. And i'd bet that marketers are salivating just thinking of ways to use sublimial suggestion with shutter-3D technology, and governments,,, well, controlling people is what they are all about and hypnosis, brainwashing and subliminal suggestion are all about control. i'll say more as i get further along in this investigation, but let the past be our warning of how people can manipulate the brain through certain processes.
Recent addition >>> Heard from several people that seizures have been expreienced by some Japaneese childern viewing some 3D content. I havn't yet verified all the detail about the viewing method so et me know what you've heard from verifiable sources.
Buyer beware, that spider's web moves about seeking who it might ensnare in its web.
Now back to the fun stuff.
Where was i when i was so torn away by a reality check. Ah yes, polarization of a different kind, two monitors of different polarization
and the use of a folding box viewer with polarized filters added. This all helps to keep the eyes from struggling with the images which you'ld need to frame properly in the openings of the box viewer as you view the pair on a single monitor. Now there is no longer the need for precise framing, all you need do is be sure you are square to the monitor and the images are closely aligned. Glare on the screen or the glasses is still an issue as is not moving the desktop's cursor out of view. Viewing can be done at larger distances from the monitor, about 3 to 5 feet. With larger monitors i suspect the possibility of getting back as far a ten feet.
For those of you with a added monitor extended from you primary computer there is potential far beyond paging through the two stereo-pair pictures. Playing a side-bi-side video will be possible. With stereo movie maker the capability is built into the software. I have not use this yet since i'm struggleing to get the two LCD screens networked, they are both attached to functioning laptops. One is a gateway the other an IBM, which through the divine orchastration was purchased several months ago for an entirely unrelated project. I was not finding a flat screen with opposite polarization to the gateway computer. The Sony Vaio which was intrumental in revealing this polarization potential had a glossy screen which created unacceptable glare issues. So in a late night moment i was coaxed to check through my other LCD-equipped devices to determine if something would work as my right display screen. The IBM's screen is very suited to the cross-polairized/screen-pair setup because it's matte screen somewhat similar to the gateway. The setuo worked great and numerous people verified the ease of viewing at distanced unacheivable with a single screen.
I have a list which of flat screens and laptops which will be added here once i sort it out. Tremendeous potential seems possible with the CrossPolarized/SreenPair setup.
I'll get back here with more info as it arrives. The thanks be to Jesus for setting up this discovery.
Got questions, suggestions or observations?
Write to me at 3dzp@paraaz.com
Back shortly to 3D viewing with polarized filters.
You may find putting a monitor and a laptop side-by-side a bit difficult so using two flat screens is an option if you can find two that are oppositely polarized. I'l get the list here soon, promise!!. Dells are the left side and many newer laptops can be the right. I didn't have a flatscreen and the laptop which opened my eyes to this option could not be connected so that the screen sould be utilized by another laptop, "or so I thought and heard" and then, in another late night web moment a software called multivista came across my eyes. With this software you can do the two laptop screen interconnect through ethernet, wifi, usb, or firewire. I used an ethernet adapter on the old IBM and the results speak for themselves.
Now enough of the smoke and on to the mirrors (plural) literally.
Mirror-viewing of cross-polorized side-by-side LCD monitors showing a 3D stereographic pair of images.
If you don't have a box viewer for paralell stereo viewing, there are two options, either make one or something like one as desctibed on another page , or use two mirrors side-by-side and somewhat fixed together to provide some targeting accuracy to accomplish convergence of the two monitors. Here is one setup to consider which closely matches my initial usage of this technique. Setup your 'con'puters on a table behind a couch or chair so that it will be above head height when you are seated. Next setup the mirror assembly so that the person sitting in the chair can see, via the mirrors, the computers behind their head. A music stand or similar device would be a worthey cevice for holding the mirrors. The person who is viewing will angle the mirrors so that the two monitors merge into one. This all will begine to take on a 3D perspective once you put on your linear polarized movie glasses. Because of their cancelation of one eyes ability to see the other eyes monitor, only one image is coming through to the brain. If they are aligned well they will become one image with depth details.
Programs which allow you to place the images where you want them on the screen are the prefered ones to chose since you can get both images as close to each other as possible. Windows XP will do fine, but forget about vista, its another packaging fuopa/fubar to the max.
Have fun! and if you want to purchase inexpensive monie glasses or box-binocular viewers from me, just send me your request and a donation to the cause.
Contact me for a demonstration.
By e-mail or by phone: 520-466-3964
To God by the Glory!
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