Today's multimedia video projectors represent a versatile, practical and affordable tool that companies can serve different purposes, both within and in the home entertainment arena.
The decline in prices and the developments in video projection technology that we have experienced in these last years, have users in the digital projector even more accessible to a larger group home.
The demand is so strong that no longer producesonly produce what are models of presentations called "cross-over" – that is, the projectors, at home, which can both PowerPoint in the office and in DVD movies, but they have also begun for the purpose of the home entertainment area ordered models to produce, especially the home theater application. … Why?
It is true, "cross-over projectors can handle both worlds that, but this does not mean that a video projector that can deliver in a big presentationMeeting room is also capable of delivering a great cinematic experience in home theater.
Projectors and business projectors, home theater use have different requirements, its purpose can be fulfilled only when the projector is specially designed for the.
What characteristics distinguish Business Projectors by home theater projectors?
It is no surprise that video projectorsalways a popular choice for many home theater enthusiasts. The digital projector dollars deliver the largest image for your. Just your DVD and there you have the most cinema-like image in the home theater. Or connect an HDTV source such as a cable set-top box or satellite receiver, and there you have a huge 100 "HDTV for the cost of a 50" plasma TV.
And in the boardroom, the powerful digital multimedia projectors are now proving to be more than ideal forPresentations, they are able to clear large images under normal ambient room lighting – something only dreamed of in the days of the overhead projector. Simply plug in your laptop, and there you have the most fantastic business presentation in the world!
It should be noted, however, important that require the boardroom and the home theater, two different arenas, different animals. The different requirements between the two are important, theDiscussion that explains what follows, a video projector attributes should the cases in these two.
Important attributes Projector
Brightness:
The brightness (measured in lumens or ANSI lumens) is an indication of the level of light caused by the projector. The brightness is much more important for business use – in this view that many conference presentations are given to lighting in rooms with standard officerather than in reduced ambient light. This means that the image must be bright enough to be seen, otherwise the projection would look washed out.
For small meeting rooms and presentations with a lot of ambient light, a brightness of about 1000 to 1500 lumens should normally be in order. But keep in mind that the projector brightness is dependent on the projected size of the screen, the ambient brightness and the screen to gain the level (more inour screen guide).
For home theater applications, a high brightness is not important. Some video projectors for home theater provides deeper blacks are used to enable bulb setting to dim the user and the light source for better display in the display is in a darkened room.
Contrast:
Like the light in our contrast ratio discussed article, even a minimal level of ambient temperature can render the image with high contrastsimilar to one from say 5000:1 with a contrast ratio 500:1. This means that if a minimum level of contrast is important for the eye to see, a bright enough picture, but on the other hand is not an important attribute in the business applications, it is still home to take in when using the projector in the living room with the lights turned on.
In reality, would not everything is for the above 400:1 contrast ratio perceived by the eye, if not just take place in acompletely darkened environment. In addition, not tell because of the eye contrast sensitivity function, a contrast ratio of 2000:1 would be five times better than a perceived with a contrast ratio of 400:1. Therefore, pay more and go for a high contrast ratio only in the case of a home theater projector and as long as consideration is under controlled lighting.
Colour, greyscale performance and smooth video playback:
These are all attributes thatcritical in home theater applications. present In fact, the color accuracy with natural skin tones and the ability to fine details in bright and dark areas of matter more, the home user.
Also, the projector's ability to present application for smooth playback recorded video without motion artifacts, presenting fast action sports and film scenes, is of central importance in any home theater.
LCD or DLP:
It depends all. Strictly speaking,Both technologies may have to do a good job in one of these applications in this advance in technology, the gap closes between the two. However, LCD projectors, projectors are usually the first choice with a business prospect that this is still a brightness edge over DLP.
On the other hand is still the DLP technology favors when it comes to home cinema use due to its improved black level performance and smoother looking projections, the more similar to those the cinema.
Portability:
This is a big problem with the video business projector. Smaller and lighter, and better, especially if you travel frequently. Weight is more of a problem for the business user. Business projector mobile professionals will want the, to a slight hook to a computer or laptop, projecting an image onto a large screen or wall for presentations.
Most business-oriented projectors weigh only a few pounds – some very> Lighting business models weigh less than three pounds lost! This video projectors usually come with searching bags and wireless remote control may enable that control not only the projector but also to send commands to the PC through corresponding connections. Some remotes have a built-in laser pointer.
Most multimedia projectors in this category sound comes with a small integrated speaker for, more expensive projectors, securityFeatures such as locking cables, etc.
Portability question is not relevant to home theater. You would normally setup a permanent place for the projector. For home theater projectors, installation on site is the best on the ceiling. This means that some of the gear is planning to go into how it is best to run the cables in the ceiling theater to connect the projector with the rest of your home.
Projectors Connectivity
It is important that yourVideo projector comes equipped with the appropriate inputs, so you connect a projector to your PC or laptop in case of a company, and home theater equipment, DVD or HDTV set-top box in case of a home theater projector.
It is clear that connectivity requirements between these two groups vary in Beamer.
Most – but not all – models support component, composite, S-Video, RGB and connectivity. Home theater projectorsusually also a DVI or HDMI connection, which is very useful when it comes to a compatible DVD player or HDTV set-top boxes connect bedroom comes.
A standard starting point, more to video projectors and is best in the business sector, the M1, EVC or P & D standard, which is frequently called on, M1 or M1-DA.
The M1 connector allows the same connections as DVI – Digital single-or dual-link or analog transmissions in the caseDVI-I. But the advantage of the M1 over DVI is that the M1 also supports connections via the USB or FireWire port on your PC. The USB / FireWire connection is used to "supply commands from the projector's remote control to the computer – allowing you to scroll through PowerPoint presentations etc.,
Our advice: Check always need before you buy to be sure that you have the projector on the inputs.
Projector Resolution: SVGA, XGA or Widescreen(WVGA or WXGA)?
This refers to the native or optical resolution and measures the level of the image, indicating that the projector can handle without compressing (down-scaling), the number of pixels in the original video content. Downscaling deteriorate the image quality and image content leads to loss.
This is by far the most important video projector attribute that to differentiate business of home theater projectors. In fact, it is probably not the number ofPixels, but rather, as the amount they are arranged on the screen in width vs ie the native aspect ratio of the projector.
SXGA (1280×1024) is currently the highest resolution for portable projectors, these video projectors are relatively expensive. Most video projectors in 4:3 aspect ratio resolutions are XGA (1024×768 pixels) and SVGA (800×600 pixels).
Widescreen versions of SVGA (WVGA: 854×480) and XGA (WXGA: 1280×720)have also begun to emerge. These allow for better predictions of the 16:9 widescreen content.
Business Projectors: SVGA and XGA projectors are more suited for business presentations, with the higher resolution XGA projectors able to show in more fine details in the slideshow.
Many can, what the higher the resolution the better – but that does not necessarily apply in the case of the projector business. A word of caution here arisefrom the fact that if the text on a PowerPoint slide uses a small script to show, with an SVGA projector (requires and therefore the need for an XGA projector), this means that probably the public would back quite yet not always be able to read it. Surely you do not know that under these circumstances, cheaper SVGA projector would be the – usually – be able to do more than a good job.
On the other hand, XGA projector is thethe best option for presentations, graphics, software demonstrations, or full web pages contain, this resolution also provides a better match for laptop displays.
Home cinema projectors: If you want to use the video resolution to a projector to the project a large image on a screen in your home theater, then later the better, since you less likely to suffer from pixelation issues. It is true that pixelation, the further away you disappearfrom the screen, but in the home theater, many would prefer to come a little closer to a broader perspective and an immersion movie experience.
Although most SVGA projectors can display HD Satellite images from your HD cable tuner or they do not have enough resolution, it fair to be. The two main formats are 1080i HD resolution (1920 x 1080 pixels) and 720p (1280 x 720 pixels). SVGA projector with 800 x 600 pixel resolution, the ability to have notDisplay either format without downscaling.
Also with DVD content – on the 852×480, comes with a lower resolution than HDTV – the cheaper SVGA projectors can not do a good job with DVD movies. XGA, clearly on the other side better, but …
Both standard SVGA and XGA projectors have a native aspect ratio of 4:3, so that the image corresponds to a standard computer screen or regular TV. Widescreen content – such as the disposal of DVDs and HDTVProgramming – have an aspect ratio of 16:9. The best way, this game is the resolution with a home theater projector with a native widescreen, it's just that you avoid letterboxing, image stretching, or cropping an image, or other aspect ratio management techniques that are used to present often 16:9 content on a 4:3 screen.
Widescreen projectors come in either WVGA or WXGA. The decision for the cheaper WVGA projector makes sense if you arewatching only DVD movies. For HDTV content, WXGA projector is a necessary one. This allows you to all HDTV content scaling up to 720p without re-display. You still able to see in, 1080i HDTV material on a WXGA projector, but the projected image to 1080p HDTV compressed to fit the 1920×1080 pixels in a 1080i or in the available pixel field of a WXGA video projector.
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