Projectors – efficient equipment for demonstration of visual information
Projectors is the equipment for showing movies and images, extremely high demand at the moment. They are used in classrooms, offices, and also at business meetings, scientific seminars and symposia. In addition, there is a category of projectors for connecting to a home theater – they allow you to watch home movies in excellent quality on the big screen.
The consumer has the opportunity to buy the projector that is best suited to the task – available models can be divided into several categories:
- Slide projectors – is familiar to many from childhood projection lamp devices for slide shows and filmstrips. They are used to view children's stories and family photos, as well as for educational and commercial presentations. Such equipment does not require connection to PC or TV – are located inside the cassette of slides, a lamp and a glass lens through which the image is applied to the screen.
- The bishops – such devices are used to display graphical information from the pages of books, notebooks, printed on the photo paper, and other opaque media. Today released portable, and even handheld devices that can easily bring with you to lectures, conferences and business meetings. They do not require tuning and is very easy to operate.
- Overhead projectors – the category equipment involves the use of as carriers of information of special films with images and texts. This option is used by the speakers, speakers in front of a large audience – for large areas it fits better than blackboard and chalk. Multimedia projectors are used to project onto a screen high quality digital image with PC monitor. Short throw mini-machines designed for use at home or small offices, long give the opportunity to show photos and videos in large venues.
A few words about how to transfer image
Currently, there are projectors that use different methods of forming and transferring images:
- LCD principle of operation is based on the application of a triple liquid crystal matrix. This category of budget devices that are available in financial terms, but demanding the viewer does not always remain satisfied with the quality of the image. DLP this technology provides the expressiveness and contrast of the video. It is based on microthermal and color wheels turn with the help of the commands received from the chip when the beam is focused on the screen and transmits the image.
- LED – devices of this group are characterized by excellent color reproduction, excellent quality and contrast. Such devices are compact – some of them you can carry in your bag or even pocket. Currently, experts consider them to be the most promising.
- Holographic system is now becoming increasingly popular smart device. to obtain three-dimensional images in the air, not on the screen.
Before you buy a projector, it is necessary to analyze its parameters to make sure that the device is suitable for use in certain conditions. The most important include the following characteristics:
- The resolution – it determines the quality and sharpness of the image and its size on the screen.
- Throw ratio is a value equal to the distance to screen in cm, divided by the width of the image in cm.
- The proportions of the screen, you can find devices with a standard diagonal and a panoramic device for showcasing wide images.
- The possibility of stacking – there exists a technology through which several synchronized devices are used to produce a high quality image.
- Availability of interactive options – this type of device fitted with a chip, motherboard and special software, enabling to use a Touch-options, involving the management with your fingers. Such equipment can be used for learning as well as virtual games, watching cartoons, etc.
- Installation type – projectors are now available with legs that can be put on a table or a rack, as well as devices on the tripod and ceiling models, for installation using brackets, hangers and fasteners. Management of the last kind involves the use of a remote control – this is because they are at high altitude.
- A way to connect to laptop for this purpose cables or a wireless system Wi Fi. In the first case, it is important that the connectors of the computer and the device match – otherwise you will need an adapter. Sound and image can be connected or integrated with a separate cord – it depends on the opportunities offered by the apparatus.
- Type of food – usually represented with projectors units, whose voltage is 9 or 12 V.
You have the opportunity comfortable and functional projector to buy in our online store – complete with go drivers for PC connection, cables for switching and other necessary accessories. Here you can also order the canvas screen, tripod, etc., We offer a budget Chinese models, as well as expensive equipment with an elegant design from Japanese, American and European manufacturers. Make a purchase and we will deliver it to Kiev or any other city that you specify.