3D Glasses Related Questions

3D glasses allow their viewers to experience the illusion of three dimensions on a 3D video projector or a 3D television screen. These glasses create a perception of depth in an image. Passive polarized glasses and active shutter glasses are mainly the two types of 3D glasses and each type uses a different technology. They separate the images viewed by both eyes, which is then processed by the human brain and then converted into a 3D image. Below are frequent asked questions on issues relating to 3D Glasses that has been answered by the Experts.

I have a Panasonic TC-P55ST30 TV. What brands of 3D glasses would work with that TV?

To get the correct brand of 3D glasses for your Panasonic TV, you would want to visit http://shop.panasonic.com/shop/model/TC-P55ST30?t=accessories. This website would provide you with options on shutter 3D glasses that are compatible to work with Panasonic. However, it would always be a better idea if you could go through the various sizes of these glasses available on this website before purchasing one. For instance, if you could visit http://www.amazon.com/Panasonic-TY-EW3D3LU-Active-Shutter-Eyewear/dp/B0058SYDUW, you would be able to get the large size option of 3D glasses. You could take their model or the part numbers and check their prices on the website.

I own a Westinghouse TV with model number TX47F430S. The Direct TV is 3D. I can see

two pictures that are placed side by side on my TV screen. What 3D glasses would I

need to view the TV in 3D?


To begin with, your TV does not seem to be 3D capable. Moreover, the model number that you have provided is not going to work with the DirecTV 3D. Usually, when you purchase a new 3D TV, you receive a pair of 3D glasses along with the new set. Therefore, you would find that in many cases these glasses may not work best with brands other than their own. For example, if you have a Samsung 3D TV, you would see that it works best only with your Samsung 3D glasses. However, in this situation, the reason you thought your TV was 3D compatible is because your TV has a 3D comb filter. This filter is mainly used to control the picture noise on your TV and therefore has nothing to do with 3D viewing effect. Moreover, in this particular case, since a 3D image is being played over a non 3D screen, you kept viewing the two pictures side by side. Usually a 3D TV works by combining two separate images on the TV screen. These images take up the entire screen and become blurred. Now the 3D glasses merge these blurred images into a single 3D image.

Can I plug the 3D glasses directly into a TV port on my HD DLP TV to have them work

effectively or do I need a ‘Starter Package’ for this?

Normally, the 3D glasses consist of an emitter, which can be plugged into the four pin ‘Emitter’ port. You can locate that port on your TV’s back. However, if you purchase the 3D glasses kits from Mitsubishi, you would get the emitter and a control cable along with the kit that you can use to connect to your TV. You must also know that the 3D glasses that you receive in the kit are wireless. For more information on these glasses, you could click on http://www.4electronicwarehouse.com/products/mitsubishi/3dc-1000-3d-starter-pack.html.

I want battery operated 3D glasses for my Hitachi 1080p TV. Where can I buy that?


Hitachi does not provide battery operated 3D glasses to begin with. Therefore, you would need to buy a different TV in order to gain a 3D experience in this particular case. Some companies like Samsung, however, does manufacture these battery operated 3D glasses that are meant for the purpose of experimentation. They are manufactured only for some Samsung televisions that are sold with a particular type of Blu-Ray player. Therefore, if you want to experience a 3D viewing effect on your television set, what you would need to have is a new TV set that is 3D enabled. For that it is not at all necessary for the glasses to have power or batteries of any kind.

The concept of 3D is gaining popularity and is being used in movies, video games and televisions. However, it is important to ensure that the 3D glasses are positioned properly and all other equipments are working correctly, if you want to experience a good quality of 3D viewing. Or else, you may have problems like motion blur, brightness reduction, ghosting and so on while viewing the 3D images through these glasses. If you need clarification about your specific situation with respect to issues related to 3D Glasses, you may ask a TV Technician expert to evaluate your case details and provide a technical insight.

Confused Views: 7 alternative uses for 3D glasses

In the wake of Jackass 3D, Matt comes up with seven alternative – and potentially disastrous – uses for stereoscopic spectacles…

7 Alternative Uses for 3D Glasses (With Catastrophic Consequences)

I hate to upset James Cameron, God knows I do. But amongst the many things I took away from Jackass 3D was the knowledge that 3D clearly works best as a novelty. Sorry, J-Cam. I like looking at 3D forests and dragons flying into sky-rocks as much as the next chap, but it doesn’t quite compare to having chunks of 3D faeces flying out of the screen at you. If you’re honest with yourself, I’m sure you’ll agree.

Like any person who wishes to maintain the sacredness of the 3D experience, I limit my 3D cinema visits to only the most essential outings (which, based on this article, include Avatar and Jackass 3D). Therefore, my 3D glasses (which I’m now lucky enough to get to take home with me) are not getting much use. This simply won’t do.

I’ve considered other possible uses for them and have come up with these ideas, all of which are incorrect answers to a question nobody asked.

1. Sunglasses

Because real sunglasses cost upwards of £6 and you’ve already paid for these ones, there’s no reason your 3D glasses can’t multitask and be sunglasses too. My motto has always been ‘Why do one thing well when you can do several things at a sub-standard level?’ I’ve even got a wooden plaque proudly displaying this motto hanging above my desk as I write this. I made it myself, using a piece of old door and a biro. It looks dreadful.

Catastrophe is inevitable because: They offer almost no protection against bright light. Aside from potentially damaging your eyes by putting these glasses on and staring directly at the sun, you might also find yourself temporarily blinded by brightness while driving. Or maybe you use them to protect your vision-balls from the sun whilst on an exotic holiday to a mountainous area. I’ve seen people lose their balance on cinema steps while wearing these glasses. So, on the edge of a cliff or some such would prove problematic and ‘splatty’.

It’s worth noting that it does warn you on the bag that they aren’t actually sunglasses, which is why this is a lazy suggestion as well as a stupid one.

Potential fatalities: Lots. Should the car crash scenario come to be, a high death count can be expected. And should you take a tumble from a great height, there’s no telling who you might land on or who might slip on your liquidy corpse-jam.

2. Creating a false reality

Make tedious, everyday tasks exciting by pretending that they’re simply part of a 3D film. Give your bus journey to work a narrative arc, perhaps involving the driver being an evil robot monster who will explode if that group of annoying teenaged hate-sacks don’t stop playing bad rap music on their phones. Just because you have to live in reality doesn’t mean you have to interact with it!

Catastrophe is inevitable because: People interact with reality for a reason. It’s one of those unfortunate necessities of life. If I could spend all day at home sitting in my pants and an Iron Man helmet making swooshing noises because I’m pretending to fly, then I would. But it would ruin Christmas dinner for the rest of the family in much the same way as you turning up in silly glasses, munching on popcorn and hysterically laughing every time Nan gets a pop culture reference wrong would.

Furthermore, it would trivialise danger. 3D films have taught us that when something long and sharp is flying towards your face, you’re perfectly safe. Reality has, correctly, highlighted that this isn’t the case. By ignoring reality, the chances are that you’re going to end up sticking your head in front of moving arrow or recently fired bullet while going “ooh”.

Potential fatalities: 1. You.

3. Part of a disguise

These 3D glasses surely would come in handy for lurking in bushes or committing any other acts where identifying features, such as sparkling blue eyes that you could get lost in for hours, can cause you to stand out when your victim next sees you, likely in a police lineup.

Catastrophe is inevitable because: This will only work if everyone starts doing it. It won’t be difficult to catch the only criminal wearing 3D glasses, will it?

Police Officer: Would you mind describing the man who waved his genitals at you, madam?

Shaken Victim: He was thin, pale, had fake Star Trek ears, 3D glasses like they give you at the cinema and a blue t-shirt with the Den Of Geek logo on, available for purchase online for only £14 (plus p&p) in a variety of colours and sizes. And while you’re buying one of those, why not treat yourself to a mug for only £8.99?

Police Officer: Is that the man there in the bushes, madam?

Shaken Victim: Yes, it is. Please buy a mousemat.

Alternatively, what if they lure you into thinking you’re watching a crime caper rather than causing one? You’ll get careless. I just don’t see a scenario involving this idea that doesn’t involve some jail time.

Potential fatalities: 100s. If you did find they offered your criminal activities an effective cloak of anonymity, then who knows what you might do. A bloody killing spree with a homemade shiv seems likely.

4. Weaponry

To adapt your 3D glasses into a shiv, you’re going to need to go a bit Blue Peter. I’ll include a handy step-by-step guide, so it’s as simple for you as possible.

Step 1: Snap the arms off of the glasses and put them somewhere safe. Take the section of the glasses with the lenses on, the front bit, and forcibly insert it into your anus. Alternatively, you can dispose of it in any other way you see fit. Just be sure to keep it out of reach of children, as there will be some sharp edges.

Step 2: Take a knife, and whittle one end of each arm into sharp point.

Congratulations. You’ve just created your very own shiv. Perfect for recreating some of your favourite prison movie moments.

Catastrophe is inevitable because: It’s a flimsy weapon and once you bring stabbing into an equation, you really are going to want something sturdy. If nothing else, because you’re probably going to get stabbed back. This is another one that also carries serious jail time and is, I’d probably concede, morally wrong. I’m actually going to go right on ahead here and say that of all of the ideas on this list, this one is probably the worst. Also, if you’re using a knife to create the shiv, you’re absolutely wasting your time.

Potential fatalities: 7. You, plus a group of us who will die laughing at you for having the audacious stupidity to actually try it.

5. Impersonating Kanye West

There’s no way that the giant-skulled rap-warbler has never worn cinema 3D glasses as a fashion accessory. It’s simply impossible that it hasn’t happened.

Catastrophe is inevitable because: You end up looking like Kanye West, a man with a figuratively and literally giant head, who might be, even though nothing factually suggests it, a toilet nuisance. Once you’ve started to look like Kanye West, it’s only a matter of time before you start to act like him. Your relationship self-awareness will immediately strain and then shatter, the pieces frothing into nothing and disappearing forever. Then you’ll start singing like a robot.

Potential fatalities: 0. Consider this to be harmless, although be warned that you’re reaching Uwe Boll-ian levels of hatefulness if you do it.

6. Tomfoolery and deception

Have you ever watched a 2D film and wished that it was in 3D? No? What do you mean ‘no’?

Work with me, lie and say you have.

Yes? Well, how about pretending that it is by wearing your 3D glasses into the cinema for a non-3D film. This time, the pretending is not for your benefit. For this to work you need to pick a crowded showing and you’re going to have to make lots of ‘ooh’ and ‘aah’ noises. If you really want to sell it, reach out a little bit to try to touch the thing that isn’t actually coming out of the screen (although exercise caution. You don’t want to prod someone in the back of the head. It’s impolite and they might be carrying a homemade shiv).

Once you’ve been banned from your local multiplex, you could try the same trick but in more interesting places. How about a highbrow play? (And by highbrow, I specifically mean not panto.) You could even make some stickers saying ‘Now with added 3D’ and stick them on the posters outside the venue.

Be creative. Maybe try it at home while watching TV with your family. Try it at a pop concert or while watching a video on your phone in a bustling public area.

Catastrophe is inevitable because: You’re will either anger a mob or become the subject of their collective ridicule. Once people work out that you’re playing a prank on them, or punkulating them, as the kids say, they will either think that you’re very stupid and tut loudly, or they’ll become infuriated and tear you limb from limb.

Also, while you may not count this as a catastrophe, it’s worth noting that this one involves wasting huge amounts of your time with absolutely no benefit.

Potential fatalities: 1. You, and if not you, then your dignity. Seriously, you’re better than doing this.

7. Further tomfoolery and deception

For this one you will need a beloved pet dog and several months to train that dog to wear 3D glasses without causing a fuss. We do a similar thing in my house where we make Dr. Poodle Von Cuddlestein wear reindeer antlers all year just so he looks adorable on Christmas morning. Interestingly, if you look into his eyes for long enough you can see an aching for death. It’s mesmerising.

You need for your dog to be used to wearing the glasses by 1st July 2011. On this day, take him to see Transformers 3. Now, you are going to need to get your dog into the cinema. However, if you look closely at what this list is, it’s ‘alternative uses for 3D glasses’, not ‘how to sneak a pooch into a Cineworld’. You’re going to have to do some of the thinking for yourself. What, do you want me to tuck you in at night, read you a bedtime story and tenderly kiss you on the forehead too?

Anyway, you bring your dog into the cinema and have it wear the 3D glasses for the duration of Transformers 3. Then, at the end, you have to loudly ask what it thought of the film, wait a moment like you’re pretending to listen, and then agree that you thought it was shit as well.

Catastrophe is inevitable because: You have to watch Transformers 3.

Also, I can only imagine that it would be next to impossible to control a dog in a cinema. Too many smells, too many people, too many flashing images of colourful robots clumsily scrapping for no interesting reason. No matter how well you’ve trained it to wear its glasses, it’ll still more than likely go on a rampage through the multiplex, leaving a trail of aggravated anarchy as it does.

Read more: http://www.denofgeek.com/movies/16624/confused-views-7-alternative-uses-for-3d-glasses#ixzz2i2Xzfu3x



Top 10 3D games right now – plus what you need to play them

With Call of Duty: Black Ops built for 3D, the list of 3D-enabled games has reached a respectable number. So which ones are the best and what gear do you need to play them?

Avatar the movie hurled 3D into the public consciousness, but the true impact of 3D is being felt in gaming, where you’re not just watching a stereoscopic world, you’re totally immersed in it. Watching Avatar at the cinema was cool, but putting on the NVIDIA 3D glasses and firing up our ASUS 3D monitor to play Need for Speed: Shift in 3D was mind-blowing. It was the “wow” moment, the kind you get when a new, disruptive technology shows up to suddenly change the way things are done.

But although the technology pieces for 3D started appearing early in 2009, it’s only now that the content is finally catching up. The list of games that are not just “converted” to 3D but designed from the ground up to work with it has grown to the point where the investment in the requisite 3D hardware can be considered worthwhile.

Here is a list of the top 10 3D-enabled games and the gear you’ll need to play them. Be warned though – what comes through loud and clear from user feedback and our trawling of 3D gamer forums is that getting the games to work perfectly on your PC will require a bit of tweaking, and in many cases, you’ll have to turn the frame rate down and anti-aliasing off, as well as making any number of adjustments until your system can cope with the extra load of running in 3D.


This top 10 is based on own experiences with 3D games in the labs, general user feedback on the web and NVIDIA’s own ratings. NVIDIA is important here because it provides the only complete 3D solution for PCs, a kit called NVIDIA 3D Vision (explained at bottom of the story). It maintains a page in which it classifies the games by how well they exploit 3D, however not all our picks and user favourites agree with NVIDIA’s ratings. Many of the favourite 3D games don’t get the  “NVIDIA 3D Vision Ready” label that says they are perfect showcases of NVIDIA’s 3D kit. Thats’ because they have other 3D qualities that users love.


This is far and away the top 3D game right now because it works on all levels. BBC2 becomes much more visceral in 3D, creating an extraordinary sense of immersion in the battle. You can feel the action, experience the explosions, and your gun looks like a real 3D object. On a technical level, BB2 is also superior because of the attention to detail, the most obvious being the way it refocuses close objects such as your gun when you shift your gaze back from distant objects, overcoming the problem of having perfect depth of field in the distance but out-of-focus stuff close up. Like many of the 3D games, however, BBC2 in 3D may require you to tone the settings to play it smoothly.  Some BBC2 players also report they find it hard to adjust to 3D in gameplay.


This game is not in NVIDIA’s top list of new-generation 3D games, but the excellent reviews from users are just relentless and it can’t be anything but number two in our Top 10 list based purely on user praise. There is no doubt the three dimensional mystical landscapes and underworld are captivating, but our suspicion is that having a 3D babe as its major character is a significant driver of the praise from the young men who play this.


This is state-of-the-art 3D atmospherics. No game gives you a better sense of immersion into scary, claustrophobic interiors than Metro 2033, nor make your heart jump as much when a monster leaps out at you. If you just want to find out how 3D can envelop you, this is the game. It uses every technology at its disposal to generate realism, such as 3D, PhysX, Phong tessellation and direct compute. But some things have to give, and you may have to turn down the graphics settings to enjoy it in 3D


Batman just does 3D superbly. It’s often the game used by vendors selling 3D hardware so that gives you an idea of how polished it is in three dimensions. It’s a cliché, but people and objects in it just seem to leap out of the screen.

5. MAFIA 2

What do you need to get right for a game about the Mafia? The suits! These Italian-American guys like to dress in expensive suits, so Mafia II uses a special “Apex Clothing Module” from the PhysX Developer Toolset to bring you the Mafiosi’s fabrics in astonishing realistic fabric. The theme carries through to explosions as well, as things blow up with super realism, each bit of shrapnel behaving as you’d expect it in a real explosion – unpredictably. In all, a graphical stunner.


This game is a standout for its amazingly realistic landscape, particularly the way the water and light behave. That’s because it’s the first game to use NVIDIA’s CUDA technology to the fullest, particularly when rendering water – where you see incredibly realistic micro ripples and fine grained reflections. CUDA is also used for creating high quality depth of field effects. Just Cause 2 is so nice you don’t want to ruin it with the need to kill and blow up things. As one forum user says: “Sometimes I prefer just driving around watching the scenery, rather than blowing up everything.”


Racing simulations is the most competitive 3D category of all – probably because racing games benefit more from 3D than any others. Once you’ve raced in 3D you will never go back to 2D, and it’s often said that many players find their times dramatically improve when moving to 3D because the environment is much closer to the real one they experience in their cars. There are many standout titles in this. Need for Need for Speed – Shift, Flatout and Burnout Paradise are consistently praised – we couldn’t really separate them but since we’ve actually played Need for Speed and been blown away by it (the “wow” moment) it gets the gong.


One of the next-generation 3D games with the works. Definitely one of NVIDIA’s 3D Vision showcase games that feature not just 3D but DirectX 11 support, hardware tesselation, computer shader and so on . In short, you go to a totally immersive planet with amazing landscapes in which you fight to take control of the Thermal Energy that drives weapons.


Regardless of the movie, AVATAR the game is actually great in 3D, and may gamers still rate it as their favourite. Enough said. Watch the movie, enjoy the game.


The first Call of Duty game to be built for three dimensions. Black Ops in 3D probably deserves to be higher up this list, but right now it’s too new, too untested for us to say it’s totally up there. From what we’ve seen and early users are saying, it’s incredibly promising. Like in Battlefield Bad Company 2, the depth of field makes you feel as if you’re there, in battle. The lead cinematics animator on Call of Duty, Adam Rosas, reportedly said “ We used 3D to give you better transitions and to work certain elements into the game. If you want an element of surprise, you can use this 3D technology to actually surprise a player, rather than just putting a flash on the screen. You can really implement 3D so that your peripheral vision will catch something and you’ll look over there, where you can fully reveal what you want them to see. So 3D can be used to draw the player where the action is within a story. It’s even a better visual cue than lighting, which games have used to send players in a certain direction.”

Read more:http://apcmag.com/top-10-3d-enabled-games.htm

Screen Cinema Digital Video Eyewear Glasses with Earphone

52″ Screen Cinema Digital Video Eyewear Glasses with Earphone

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Radiation-free LCD technology

52” wide-screen virtual display

High-quality picture and audio effect

Maximum comfort to eyes

Ultra-light weight, portable and comfortable

Can work with IPhone, iPod, MP4, MP5, PMP, DVD and other milti-media players

Play games with PS2, PS3, XBOX, Wii, Game console, handhold game

Watch TV program with TV set, portable TV receiver with AV out


Display: no radiation full-color LCD micro-display

Memory: build in 2GB, support up to 32GB

Resolution: RM/RMVB:Below 720*576 AVI:Below 800*480

Virtual screen: 52inch 4:3 large screen (at 2 meters’ distance)

Video input: mixed video input

Video format: NTSC/PAL/SECAM automatic selection

Color depth: input 24-bit

Optical visible angle: 26 degree angle

Battery: built-in polymer battery

Power consumption: <450mWa

Sample rate: 8KHz /16KHz

Mp3 bit rates: 64K bps- 320K bps

WMA bit rates: 64K bps- 384K bps

Frequency response: 20Hz to 20KHz

SNR: >85dB

USB interface: high speed USB2.0

Working temperature: 23F~113F, -5°C~40°C

Viewing angle: controllable degree is -15degrees to 15degrees

Seeing Triple: 3 Types of 3-D Glasses

Anaglyph glasses: Classic red and blue

The most common image of 3-D glasses is the iconic white cardboard frame with one blue lens and one red lens. These so-called anaglyph glasses have been widely used for well over half a century and have become the symbol of 3-D.

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Anaglyph glasses are a “passive” form of 3-D, meaning they just filter out certain things naturally. One image is projected on a screen with a blue tint, and the other is projected in red. The blue lens only lets the red image through, and the red lens only lets the blue image through, so each eye sees a slightly different image. It doesn’t have to be red and blue; there are many color combinations that work, but red/blue and red/green are most common.

There’s a problem though.

“Although [anaglyph] can create a good depth sensation, it very seriously compromises the quality of the perceived color,” said Dr. Jim Sheedy of the Pacific University College of Optometry.

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Those color problems are one of the main reasons that anaglyph 3-D content has been declining in recent years. The main benefit of anaglyph glasses over other technologies is their price. Anaglyph glasses are so cheap that they are usually just given away.


Polarized glasses: Not just a pair of sunglasses

The next type of passive 3-D glasses is polarized, and works similarly to anaglyph. Instead of using colored lenses, the lenses are polarized, meaning they only let certain wavelengths of light through. This gives them a tinted look that can make them easy to mistake for regular sunglasses at first glance.

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When light is polarized, the light waves all oscillate in one direction. By displaying one image that is polarized “up and down,” another image that is polarized “left and right” and having each lens only let one of the two types of light through, these glasses can achieve a 3-D effect.

“This can be very effective and does not have the color problems associated with anaglyph,” Sheedy said.

For this reason, polarized 3-D glasses are the technology of choice for most 3-D content in movie theaters. In addition, the glasses themselves are relatively cheap to make, too. While it’s common to have simple plastic frames, theaters can even mount the polarized lenses in cardboard frames just like anaglyph glasses. Nicer polarized glasses can run anywhere from just a few dollars to $20.

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Shutter glasses: The next generation

The most recent type of 3-D glasses, called shutter glasses, is also controversial for being the most expensive. Really expensive, in fact. Most TV manufacturers are selling shutter glasses for 3-D TVs at over $100 each.

Shutter glasses take more of a brute force-approach to create 3-D content. Instead of having two slightly different images displayed simultaneously and filtering one to each eye, like passive glasses do, shutter glasses make each lens go opaque and then transparent again in sync with the images displayed on the screen. When the screen displays the image for the left eye, the right lens will go dark so that only the left eye can see it. Then, when the image for the right eye is displayed, the left lens will darken and the right lens will become clear again.

These images flip back and forth faster than the human eye can perceive. It just seems as though you are watching a film through regular glasses, even though in a sense you are watching the movie one eye at a time. This is why shutter glasses are called an “active” 3-D technology.

There are several ways to make shutter glasses; the most common format right now is to use LCD technology that can make each lens go dark and clear very quickly. Unfortunately, it takes power to make this transition, which leads to another drawback of shutter glasses: They require batteries.

In order to sync the shutter for each eye with the proper image on the screen, shutter glasses usually employ a special infrared emitter placed on top of the TV and pointed at the viewers. The infrared signal tells the glasses when to darken each lens, keeping the glasses in sync with the show so that viewers get the proper 3-D effect. If the infrared emitter is obscured, the glasses won’t work properly.

So why are there so many different types of 3-D glasses? Why use anaglyph when polarized has less color distortion? And why have shutter glasses when passive glasses are so much cheaper? It turns out that it all depends on what medium the 3-D content is in.


3-D glasses for TVs

The main reason shutter glasses have been developed is for 3-D TVs. The other two main options, polarized and anaglyph, have major drawbacks.

“With current TV systems, it is not possible to show polarized images – they cannot be projected onto a screen as in movie theaters,” Sheedy pointed out.

That eliminates the polarized option. And while anaglyph technology works and has been used on TV for decades, the color distortion problem makes it a less desirable alternative. But there is a bigger reason to go with shutter glasses.

“[Shutter glasses] allow Sony to provide the very best possible 3-D picture quality – full HD 1080p.  Passive or polarized glasses only allow you to receive 720p or half-definition images,” said Greg Belloni, spokesman for Sony Electronics.

With high definition being the standard format for TV these days, shutter glasses were the obvious choice.

The main problem is that shutter glasses from one brand usually don’t work with a different brand of TV, so they can’t be used just anywhere. And even with the infrared emitters, the glasses can sometimes fall out of sync by milliseconds, which results in an effect called “flicker.” The glasses cause the image to appear to flicker, which ruins the viewing experience and possibly even the 3-D effect.

And then there’s no getting around the price. Belloni said that all 3-D glasses for Sony’s BRAVIA line of 3-D TVs will be priced at $150 each. Each TV comes with two pair of glasses, but if more than two people want to watch at once, you’ll have to crack open the wallet for more.

3-D glasses for movie theaters

All three technologies are usable in movie theaters because the image is projected onto a large screen instead of displayed on a glowing TV screen. However, it should come as no surprise that most theaters are going with polarized glasses. They avoid the color problems of anaglyph glasses and the high price of shutter glasses.


3-D glasses for home theaters

The home theater is still a gray area for 3-D glasses. If you use a TV, then the answer is the same as the one explained above. But some owners use a projector or DLP TV in their home theaters. This makes it possible to use the cheaper polarized glasses and forgo the shutter glasses.

It’s not so simple though. Polarized 3-D content requires two separate projectors or a projector that can display two images simultaneously. In the end, that might cost more than buying a few extra pairs of shutter glasses.

The other problem is getting content. Since most 3-D movies will be encoded for TVs, which use shutter glasses, there may not be as much content available for purchase in polarized formats. It remains to be seen if home projectors will comprise a large enough portion of the market to make a difference or if TVs will just be the standard display format.

3-D glasses for gaming

While most 3-D gaming monitors are quite expensive and require shutter glasses, some manufacturers such as NVIDIA and iZ3D are including an option in their hardware to encode 3-D-capable games in anaglyph. This provides a much cheaper option for gamers, but it only applies to PC gaming. Console gaming – on the Xbox or Playstation 3, for example – which usually relies on a TV for a display, will likely always rely on shutter glasses.

SainSonic Universal Clip-On Rechargeable Active 3D Glasses For

Panasonic, Sony, Samsung, Sharp TVs


How does 3D TV work?

Regardless of whether your 3D television is a plasma or LCD and regardless of whether it uses passive or active glasses, they all use the same basic principle to deliver 3D images. Essentially what all 3D TVs do is display two images and by wearing a special pair of glasses the two images are split so that each eye only sees one of the two images. It is as simple as that but where the clever part comes in is how the brain interprets these two images.


When comparing these left and right eye images, every object in the scene is horizontally displaced by a small amount. The brain assumes these two displaced objects are actually one object and tries to fuse them together. The only way it can do this is to assume that the object is either in front of or behind the screen. The direction and the amount of displacement define where each object is in the 3D space. The wider the displacement, the further behind the screen the object appears and conversely the narrower the displacement, the further in front of the screen the object appears.

When it comes to the glasses that are used to differentiate these two images there are two approaches – passive and active. In its simplest terms the passive 3D approach uses a pair of polarised glasses and a polarised filter on the front of the TV screen. You can’t normally see this filter but when you put on the glasses it ensures that the each eye sees alternate lines on the high definition picture, creating a discrete image for each eye that the brain then combines to create the 3D image.

The alternative approach is active 3D, which uses glasses that have LCD lenses in each eye that are synchronised with the image being displayed by the 3D TV. Each view is displayed on the screen sequentially and, thanks to a battery in the glasses, when a small electrical current is passed through the lens it goes dark, thus the left eye sees the left eye view whilst the right eye is blacked out and vice versa. This process is synched to the 3D TV via an IR (infra-red) or RF (radio frequency) emitter and the alternating views are shown hundreds of times a second, so that once again the brain combines the left eye and right eye views to create a 3D image.

As with regular TV, there when buying a high definition 3D TV you can choose between either a Plasma 3D TV or a LCD 3D TV and which you choose is generally a matter of preference. At present all the plasma 3D TVs on the market use the active 3D approach which means they deliver Full HD 3D and tend to offer larger screen sizes from 50 inches up to 65 inches and above, which makes for a more immersive 3D experience. Due to the inherent superiority of plasma over LCD, the best 3D TVs available tend to be plasmas and this is in part due to the faster response times of the panels which minimises the problem of crosstalk as well as the better motion handling.

Alternatively, LCD 3D TVs offer a choice of both passive and active 3D, depending on the manufacturer and also include smaller screen sizes, down to 40 inches and below which tends to make them more suitable for 3D gaming. They also offer much slimmer designs and are capable of delivering much brighter images which can combat the inherent dimming caused by the 3D glasses. The major disadvantage of LCD, especially when combined with active shutter glasses, is that the slower response times of the panels in both the TV and the glasses can result in crosstalk. This is when the image for one eye is still visible when the image for the other is being displayed, which results in ghosting.

Once you have decided which type of 3D TV and which method of 3D delivery is best for you, then next question is how to source 3D content. After all, there isn’t much point having a 3D TV if there’s nothing to watch. There are a number of methods for delivering 3D into the home, including digital off-air, satellite, cable, the internet, video game consoles and Blu-ray players. However, at the moment there are no special compression standards designed for 3D, therefore existing standards must be adapted. The left and right signals need to be combined into one high definition frame sequence and sent over a normal transmission system.

There are two basic ways of delivering 3D into the home and these are called ‘side-by-side’ and ‘frame sequential’. The side-by-side method is more commonly used by broadcasters and in fact if you have ever looked at SKY’s 3D service or the BBC’s recent 3D broadcasts on their HD channel with a normal television, you will literally have seen two images side by side. Those two images are the left and right eye views, which the 3D TV can detect and then display as a 3D image and the reason this approach is good for broadcasters is because the bandwidth and frame rate are the same as a normal transmission. Unfortunately the downside of this method is that the horizontal resolution is halved for side-by-side broadcasts which can give rise to jaggies in the image.

The development of 3D broadcasting has largely been spearheaded by SKY in the UK and they launched a dedicated 3D channel in 2010. This channel provides a range of 3D content including sport such as Premiership matches, concerts, ballet, documentaries and movies. The first major sporting 3D broadcast was the 2010 FIFA World Cup from South Africa but since then other events such as the Ryder Cup have been broadcast in 3D. Most recently the BBC transmitted the first ever free-to-air 3D broadcasts when they broadcast the Men’s semi-finals and final and the Women’s final from Wimbledon will be broadcast in the format.

The other method is frame sequential which is good for local connections such as Blu-ray players and game consoles, both of which can handle the higher bandwidth required. Frame sequential 3D, as the name implies, consists of a sequence of alternating frames wherein each successive frame carries the image meant for one or the other eye. This means that if the first frame contains the image for the left eye, then second frame carries the image meant for the right eye, the third frame again carrying the image for the left eye, and so on. This format has proved popular because unlike side-by-side, it can deliver Full HD 3D and for this reason it is part of the 3D Blu-Ray specifications. The number of 3D Blu-rays is increasing with every passing month and so are the numbers of 3D enabled games that can be played on the PS3 or the X-Box 360.

There is of course one final way of creating 3D content and that is using the 2D to 3D conversion featured included on many 3D TVs. However be warned, this is not real 3D but an approximation created in real time by algorithms built into the software on the 3D TV. As such it is very unrealistic and prone to errors and artefacts when the convertor becomes confused by the original 2D image. Here at AVForums we feel that the 2D to 3D conversion features on 3D TVs are little more than a gimmick and best avoided.

Get a Pair of 3D Glasses for Your PC, Too

It is the trend that people buy 3D glasses for their TV so that they can enjoy the 3D programs. Yet don’t forget that you can also watch 3D movies and play 3D games on your computer too!

We recommend you the following product that is suited to your PC with amazing functions.

SainSonic 3D Glasses for PC


What’s special?

*Support up to 500 PC games; Watch movies in 3D;
*Brightness is more better than the original PC glasses;
*Perfectly compatible with nvidia 3D system; Compatible with Samsung, LG, Acer, ViewSonic, Alienware, ASUS 120Hz Monitors;
*Highest quality stereoscopic 3D solution; Support for new pure 120 Hz LCD monitors;
*3D IR Emitter is as the same as the original IR emitter and can be used for Original 3D PC glasses.


Package Content

1 x 3D Active Glasses

1 x Glasses Case

1 x Cleaning Cloth

1 x USB Charge Line

1 x 3D IR Emitter Box

1 x Using Manual

What’s the price now?

Only $44.00!