Hd Projector 1080P
Hd Projector 1080P

CABLE CONSIDERATIONS FOR 1080P/50
Have you heard about 1080p/50? This is the ‘next step' in video. It is double the resolution, and double the bandwidth, of 1080i or 720p HD-SDI. Surprisingly, it is sowing up on the consumer side more than it is on the professional side. You can easily buy an LCD or other display, or a projector, that will show 1080p/50. You can also buy a BluRay player that will produce a 1080p/50 signal – assuming you inserted a 1080p/50 disc. There are a few dozen of those available.
One thing that doesn't exist is a way to broadcast such a signal. Oh, the standards groups are working on it. And, hopefully, what they finally produce will be backward-compatible with SD-SDI and HD-SDI. 1080p/50 is sometimes called "3g" because is uses a 3 GHz clock producing a 3 Gbps data stream. (This is sometimes confused with 3rd generation "3g" cell phones.)
If you're interested in going to 1080p make sure it is 50 frame. There are cameras that will also shoot 1080p/25. While this is a standard theatrical frame rate, it is half the bandwidth of 1080p/50, back to the same bandwidth as HD-SDI. But, you might well ask, why would anyone want to shoot in 1080p/50? Well, there are a number of very good reasons.
REASON #1. When 1080p/50 becomes a standard, everything you already shot in that format will be more saleable. You can sell it again! You can extend the life of the content you are producing.
REASON #2. Murphy's Law says that, if you shoot today in 1080i, your first customer will want that content in 720p. And, if you shoot in 720p, you will have a customer who wants 1080i. You can convert between these formats, but not very well. Especially with high-motion content (sports, racing etc.) it is extremely difficult to convert from one format to the other. You end up with a tennis ball that is a yellow streak across the net! But if you shoot in 1080p/50, you can down-convert to 720p or 1080i without losing anything, without software trying to figure out where that fast-moving content is going. So you can sell your 1080p/50 content as 720p or 1080i, and when 1080p/50 becomes commercially viable, you can sell it again.
The downside to 1080p/50 is, first of all, more expensive equipment. This may change after a few years, but right now it's expensive. And while there are inexpensive cameras (such as RED) that can produce 1080p/50, or even higher resolution, you have to add on equipment and software to record the signal, edit the signal, add graphics and so on. No doubt about it, 1080p/50 is an expensive alternate.
There are a number of camera manufacturers who offer their 1080p/50 cameras with dual-link cables. That is, you simply use two standard HD cables to deliver the signal. However, there are digital cables (such as Belden's entire line) which are tested and verified to carry an entire 1080p/50 signal.
When you analyze the 1080p/50 signal, however, you will see why many manufacturers of equipment and cable, cannot measure up. The clock is 3 GHz, the data rate is 3 Gbps, but the occupied bandwidth (the Nyquist Limit) is half the clock (1.5 GHz). To assure that this data will pass through equipment, cable or connectors, these have to be tested to the third harmonic of 1.5 GHz or 4.5 GHz.
If you want to find out what the problem is, just talk to your local test equipment vendor and ask him for something to test 75Ω cable up to 4.5 GHz. They will tell you there is no such thing…at least not at 75Ω. Network analyzers and other test gear often go up to 10 GHz or 20 GHz or even higher. But that's at 50Ω. Testing a 75Ω cable as 50Ω is something less than accurate.
In order to get these analyzers to work at 75Ω means you have to purchase a balun, a matching network, to match the 50Ω analyzer to the 75Ω cable (or whatever you are testing). And those are simply not available above 3 GHz. So most manufacturers test their 1080p/50 products to 3 GHz, the second harmonic. Again, not as accurate as you might wish.
Data Rate:
3.0Gb/s
Spec:
SMPTE 424M
Cable Part Number
1080p/50
Ft.
m
179DT
76
23
1855A*
154
47
1855P
127
39
1505A*
215
66
1505F
150
46
1506A*
91
28
1694A*
250
76
1694F
192
59
1695A
217
66
7731A
364
111
7732A
289
88
7732LL
354
108
Table 1
Manufacturers who wish to enter the real world of 1080p/50 must buy custom-built matching networks, which can cost many thousands of dollars. And, if they only buy one or two, then obviously, they are not using these to test the cable except in the lab. The best cables out there have every metre tested, not just an occasional test in the lab.
The one serious consideration with 1080p/50 system designs and installation, is cable distance. Table 1 shows the ‘safe' distance for 1080p/50 (SMPTE 424M standard). Note that with smaller cables, these distances can be significantly short, requiring the use of larger cables. However, these distance are calculated from the SMPTE formula that states, when the signal is down -20 dB at half the clock (1.5 GHz), that's as far as the cable can go.
Many chip and equipment manufacturers complain about this limit and state, or show at tradeshows, cables going much farther, up to double the distance shown. This clearly shows that these distances are chip-dependent. As chip designs improve, the distance achievable on any cable will also improve. At the same time, manufacturing process for cable are also improving, so these distances shown are even more "conservative".
If you use this table, you will be very safe. If you use the recommendations of chip or equipment manufacturers, be sure that you maximize the performance potential of every piece to maximize the performance of you system.
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This source can be a cable box with a subscription to a 3D channel, a 3D Blu-ray Disc player, or a PlayStation 3. Content In order to watch 3D, you will need to get some 3D content. This 3D content will come from the source mentioned above in the form of a 3D program, movie, or game. Please ensure that your 3D movies are in the Blu-ray 3D format, as this new format will provide the best 3D experience. 3D Glasses All 3D HDTVs on the market require Active Shutter glasses to create the 3D effect. You will need to buy one pair of glasses for each viewer. Also make sure that the Active Shutter glasses you buy are compatible with your display--for example, buy the glasses from the same brand as your 3D HDTV. HDMI Cable To connect your source (such as a 3D Blu-ray Disc player) to your display, you'll need a hgh-speed HDMI cable. Cables with this designation--with bandwidth speeds up to 10.2 Gbps (gigabits per second)--will be able to carry the 3D signal without any loss of quality. If you want to get more information about 3D, shop our 3D products, watch videos, or interact with other customers, visit 3D 101, our customer center about everything 3D. The 3D Ready Mitsubishi WD-60638 DLP HDTV.Click here for a larger image. An affordable way to get into 3D viewing, the 60-inch Mitsubishi WD-60638 1080p Home Cinema HDTV features DLP technology, which is up to 1,000 times faster than LCD technology--providing for a more realistic, sharper 2D and 3D viewing experience. It comes equipped with 3D-ready viewing technology, providing the best option for enjoying 3D content in the home. The 638 Series features Mitsubishi's 6-Color Processor, which offers crisp, bright, realistic color that produces whiter whites and a wider range of color, plus a 120hz sub-frame rate to ensure a blur-free picture during fast action movies and fast-paced sports. Other features include three HDMI ports, and stereo speakers with 20 watts of total power. Key Features 60-inch Digital Light Processing (DLP) panel uses Texas Instruments Digital Light Processing technology for rear-projection TVs to create the picture you see on screen. 3D Ready Experience the new 3D technologies applied to many recent movies and video games. Immerse yourself in your favorite video game, movie, or sporting event displayed in 3D (requires optional 3D eyewear). 1080p Full HD resolution (1920 x 1080 pixels) Mitsubishi's Plush1080p upscaling. Plush1080p 5G 12-Bit video processing converts lower-resolution signals to 1080p to eliminate jagged pixelated imagery. 120Hz Sub-Frame Rate for more fluid, natural motion from fast-moving video such as sports, action movies, and more. 6-Color Processor takes the three primary colors (red, green, and blue) of the video signal and extracts three secondary colors (cyan, yellow, magenta) in order to individually process each color for greater accuracy. 2 stereo speakers (10w x 2) for 20 watts of total power Dolby Digital 5.1 sound processing Integrated HDTV tuner receives both over-the-air HDTV broadcasts (received via an antenna) and non-scrambled digital cable broadcasts, including non-scrambled HDTV cable programming. HDMI Control (CEC): HDMI devices with Consumer Electronics Control (CEC) capabilities may be compatible with the TV's HDMI Control feature. Compatible devices can receive control signals through the HDMI connection, allowing the TV's remote control to operate some functions of these devices. Connections HDMI (with CEC): 3 Component: 2 Composite A/V: 2 (shared with Component) RF: 1 USB port: 1 (for updates and maintenance) Digital audio output: 1 optical See a larger image of the rear jack pack Dimensions TV with stand: 53.9 x 36.7 x 15.1 inches (WxHxD); 60.5 pounds What size TV should you get? What's in the Box Mitsubishi 638 Series 3D DLP HDTV, remote control (with batteries), removable stand, owner's manual Series: Unisen 154 Unisen 164 Unisen 265 3D Cinema 638 3D Cinema 738 3D Cinema 838 LaserVue Models: LT-55154 LT-40164 LT-46164 LT-55164 LT-46265 LT-55265 WD-60638 WD-65638 WD-73638 WD-60738 WD-65738 WD-73738 WD-82738 WD-65838 WD-73838 WD-82838 L75-A91 Panel type LED LCD LED LCD LED LCD DLP DLP DLP DLP 3D Ready -- -- -- Resolution 1080p 1080p 1080p 1080p 1080p 1080p 1080p Refresh Rate True120Hz True120Hz True240Hz 120Hz Sub-Frame Smooth120 Smooth120 Smooth120 Wireless Internet Ready Built-in Built-in -- Ready Ready -- Bluetooth Music Streaming -- -- -- -- Immersive Sound Technology Yes, 12 speakers Yes, 16 speakers Yes, 18 speakers -- -- Yes, 16 speakers -- StreamTV Internet Media -- Plush1080p Upscaling EdgeEnhance -- -- Dark Detailer -- -- -- -- -- -- 6-Color Processor -- PerfectColor & PerfectTint -- -- -- -- iPhone Remote Control app -- -- -- -- -- -- HDMI input 4 4 4 3 3 4 4 Component input(Y, PB, PR) 2 2 2 2 2 2 2 Composite input 2 2 2 2 2 2 2 Wired IR input -- -- -- -- USB port MP3 and JPEG playback -- -- Ethernet -- Energy Star 4.0 Models: LT-55154 LT-40164 LT-46164 LT-55164 LT-46265 LT-55265 WD-65838 WD-73838 WD-82838 L75-A91 Learn More Which Size HDTV is Right for My Room? With standard-definition TVs, the rule used to be that viewers would feel comfortable watching a set from a distance of 3 to 6 times the screen size in inches. With HDTV, the resolution is so much better that you can sit closer to a larger TV without noticing the pixels. So with HDTVs, the rule tends to be you can sit anywhere from 1.5 to 3 times the screen size (in inches) for the best experience. If you know the size of the room you have already, where you want to sit, and where your new HDTV should go once you get it, you can figure out the size HDTV you should get. Minimum size = Viewing distance/3 Maximum size=Viewing distance/1.5 Features
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