The projectors which rather recently appeared in the market win the increasing popularity today. And the sphere of their application constantly extends. Now there were also models of projectors which are specially focused on house application. Of course, it is possible to watch film of the house and on the ordinary TV, it is possible to install on the basis of , but the videoprojector allows to feel feelings when viewing the movie, close to feelings from visit of movie theater. And if together with a videoprojector to install also the good speaker system, it is possible to receive from viewing of favourite movies simply the sea of pleasure.
In this article InfoAdvisor.net will tell how to choose a projector for the house what in general there are videoprojectors and than they differ what their main characteristics and have to be on what it is necessary to pay attention at a choice.
Principle of work of projectors
Before speaking about characteristics of modern projectors, we will review the principles of their work briefly. Let's deeply not go into technical details, we will note, only, that, perhaps, a basic element of any videoprojector is the lamp which light, passing through certain elements gets on the screen and forms thus the picture. Depending on that through what elements passes light from a lamp projectors divide into LCD (or liquid crystal) and DLP (micromirror). Besides, we will leave the description of the principles of work of these technologies beyond the scope of this article.
It is necessary to tell only that refer less negative influence on sight to advantages of liquid crystal projectors, and also compactness. Their shortcoming is insufficiently saturated black color (owners of LCD monitors will understand about what there is a speech). The advantage of DLP videoprojectors is the better picture, and it is considered to be their main shortcoming fatigue of sight at very long viewing.
Main characteristics of projectors
As well as any technical device, projectors have characteristics to which it is necessary to pay attention first of all.
First, this so-called "basic graphic permission". It is designated by two numbers reflecting number of points across and verticals. As well as at monitors, permission happens 800x600, 1024x768, etc. up to 1600х1200. Certainly, the permission is higher, the quality of the picture will be better. For a house projector which main objective is viewing of movies, will be permissions 800х600 quite enough. It is caused by that the movies calculated on viewing on the TV screen have still smaller permission so 800х600 – it is already quite enough.
Secondly – projector brightness. Besides, the more brightly – the better. At too low brightness for comfortable viewing full blackout of the room can be demanded. And brightness in 1000 lumen will be quite enough for house conditions, smaller values already practically do not meet today. Thus, it is necessary to consider projector service conditions. If it is established in the certain room with possibility of full blackout, such parameter as brightness is not too important. If the projector is planned to use in a living room, where difficultly to achieve full darkness, as brightness it is necessary to pay attention to such parameter.
Thirdly – contrast of a projector. At a low indicator of contrast dark scenes in movies can be simply not visible. Contrast of a house videoprojector has to be ranging from 1000:1 to 2000:1.
Minor technical characteristics of a projector
If three described above the characteristic are the main, and at a projector choice it is necessary to pay attention to them first of all, other characteristics are not so significant, but it should be taken into account also them.
Treat such characteristics:
- Possibility of geometrical correction of the image. As a rule, it is difficult to establish a projector precisely in the central axis of the screen. In this regard the image on the screen can have the wrong form (in the form of a trapeze). The majority of modern videoprojectors have possibility of geometrical correction of the image.
- Lamp service life. Now videoprojectors are equipped with durable lamps, with service life of 2000 - 4000 hours. But it is necessary to consider that replacement of a lamp will cost to you some honeycombs of dollars.
- Control facilities projector. Usually videoprojectors are completed with a remote control. Some projectors have also possibility of management from the computer.
- Compatibility with video standards. Though modern videoprojectors are almost universal in respect of standards of video signal, useful will be to pay attention and to this parameter.
Besides the listed characteristics, there are also some other, producers of projectors constantly improve the production, adding all new and new opportunities, such as: the picture in the picture, the emerging helps, digital scaling, digital change of a format (16x9, 3x4) and others. A projector choice depending on these additional functions – a matter of taste. Besides it is necessary to pay attention to the sizes of the projector, possibility of fastening and others which can personally seem to you the important.
At a projector choice ideal option would be to test some models before stopping the choice on some one. However at the majority such opportunity is absent. Therefore upon purchase of a projector useful will be to consult with the seller. And InfoAdvisor.net hopes that this article will also help you at a projector choice for the house, and new acquisition will bring you the mass .