How to choose a projector for the office, schools and presentations

What you need for that, so that the opponent best remembers what was said? Convince him. Clearly provided information, bright picture and interesting performance - here are three whales, which can be used in the preparation of presentation material, reports or other demonstrations. And here special equipment will help. It is worth learning more, how to choose a projector for the office, school or conference hall.

A guide to the right parameters

The following parameters are important criteria in the analysis of such equipment:

• screen type;
• place of installation;
• reproduced format;
• surface, on which it is planned to carry out reproduction.

Usually the screen is selected, based on the mobile capabilities of the projector itself. If we are talking about a stationary installation, then the screen is chosen with a wall or ceiling mount. There are already many options - from manual winding in a roll to the use of remote control (the screen in this case will remove the electric motor).

Installation parameters are also important. The following points must be taken into account:

• the height should be one sixth of the distance to the opposite wall;
• the spectator must sit at a distance of at least, than its width;
• the distance from the screen to the floor must be at least 120 div.

The format refers to the ratio of two indicators - screen width and height. But here it is necessary to understand, for what purposes the device is purchased: home must contain 9:16, and the office will suffice 3:4.

There are special requirements for the surface of the screen, more precisely, to its color and material. This can affect the contrast and viewing angles. Of course, most often it is found in white matte finish, but, example, a gray surface can be recommended for a home theater.

Here are some important tips for choosing

Modern manufacturers produce projectors of three types - DLP, LCD і LCoS (does not matter, choose for office or educational purposes). Which one is right for you? Knowledge of such information will help.

1. DLP is best left for home, and not least because of the video quality. And this technique is very mobile and light - easily transferred from room to room. The formation of the image is due to a special matrix, consisting of a large number of small mirrors (their position is changing, and thus they reflect light).
   
2. The principle of operation of the LCD projector allows you to call it a clear favorite among office or educational devices - so bright, clear and contrasting picture. The whole thing is in the LCD matrix, which transmits the light of the lamp. The equipment consumes less electricity and will quickly recoup its cost.
   
3. The LCoS model is the most advanced technology to date. Here the picture is formed by an LCD matrix, located on a silicon mirror. Such devices are equally well suited for home and office purposes. Reliability is determined by stable mirrors - the image is bright and opaque.
   

Office variation

Projector, designed for the office, usually used to display still images. This determines a number of specific requirements.

1. The work will be conducted with a high-resolution computer image. So., the projector must be like this, that the matrix resolution was not less than the resolution in the PC or laptop.
2. There are few or no video inputs (TV tuners).

There are recommendations to stop the choice on models with such parameters:

• profitable LCD model;
• brightness of about 2000 lumens;
• image format 4:3 with a resolution of at least 800x600;
• geometric image adjustment;
• gates, connected to computer devices.

The dimensions of the device determine the task of operation: a stationary model will be suitable for a conference hall, but if the performance will be in the partner territory, then the option is best to buy a portable.

Device for educational institutions

Recently, such a device has proven its ability to be used in the learning process. It helps to show all the necessary graphics on an interactive whiteboard or a simple white screen.

How to choose a projector for school? To answer this question, such important parameters should not be overlooked:

• the ability to transfer images from a DVD player;
• use of the device with an interactive board;
• the ability to demonstrate the contents of a PC or laptop.

A separate item in such a device will be lighting. At school it is most often used during the day, and not every office has the ability to curtain windows. So., there must be efficient and vivid image transmission.

In terms of brightness, you should pay attention to the capacity of the cabinet, which provides for a slide show. For assembly halls, example, completely different devices are recommended, than just in the classroom. The school projector used can be with the following lumens:

• 2500 suitable for a hundred gathered people;
• 3000 lumens will be needed, if gathered close 200 audience audience;
• no less 5000 required for more people present.

Here are some more tips for choosing a training projector. Any such device is purchased for a budget institution, therefore, the built-in functionality in the form of headphones will be completely unnecessary. What else is relevant for such a device (or projector, intended for a conference hall)?

1. 3LCD projectors will provide good color reproduction (they have three liquid crystal matrices).
2. Preferred working format - 4:3.
3. Increased wear resistance of the device.
4. Installation in hard-to-reach places for children.

Why do you need a multimedia device

It is no coincidence that the multimedia projector stands alone in the general list of such devices. This technique is worth paying attention to, thinking, how to choose a projector for presentations. Its main difference from simple devices is the presence of several "sockets" for different sources (usually, they have a high quality DVI signal input from a computer and a VGA input for a laptop).

You can connect at the same time - if necessary, it will facilitate the transition from one to another.

The advantages of using this technique are as follows:

• portability of the device;
• excellent image quality;
• high reliability.

There were also some disadvantages:

• frequent replacement of the incandescent lamp (limit in 2000 hours);
• heating the appliance;
• noise during operation of the device is possible (better, so that it does not exceed 34dB - this will not be distracted from the ideas displayed on the screen).

Why do you need such a technique? In addition to mobility and a large number of connectivity options, its bonuses are revealed already in the process of work. Example, if it is impossible to darken the room (and at the same time it is important to make some notes on the image), then you can just increase the brightness. It is usually sufficient to select a value from 1250 ml

Popular presentation options

One of the popular models is the BenQ MX819ST, which is designed for many years of service. The lamp can work 6,5 hours in constant mode, scaling goes in 5 different options.

Projector BenQ MX819ST

Users note the easy settings and many different connectors to connect. Brightness and contrast are provided by a powerful lamp 190 W, thanks to what quality of display remains even in bright rooms. Built-in and high-quality speaker - 10 W. That's great too, that the model is small and light - it is convenient to take with you to field presentations.

There were some drawbacks - the possibility of wireless connection is not implemented. In the modern era of wi-fi networks, such know-how would come in handy.

Viewsonic PJD5133 portability is also liked by users. This projector even supports 3D. Suits everything - from design, brightness and contrast of the image to the durability of the lamp to 6000 hours. However, this device makes a little noise and heats up (not so much, to complain about him).

Viewsonic PJD5133 projector

But from BenQ MX660P there is almost no noise. This DLP model is easy and easy to connect to different laptops. There is also a button to temporarily dim the screen (so that the audience is distracted from the picture and switch their attention to the lecturer). There is also support for 3D content, and resolution is reached 1024?768. However, there is a small drawback - the projector must be at a distance of at least 3-5 meters (this is due to the large focal length).

Projector BenQ MX660P

Philips PPX-2480 is almost a pocket option. It is also made of DLP technology and can play from most USB and SD memory cards. Users enjoy long battery life - you can watch slides and videos in unsuitable conditions, placing the projector in a convenient location.

Philips PPX-2480 projector

There were also shortcomings, which detects the device. Sometimes he "thinks" for a long time when working with small video files, the fan noise is heard, may disconnect from overheating. However, most of these disadvantages are covered by the presence of an LED lamp, which saves electricity and works much longer than usual.

so, Buying projectors is a great idea for an office or school organization. And here you need to focus on the allocated budget and requirements for the device. Any chosen model will perfectly "fit" into the environment of current office equipment and will provide significant assistance in work or study..