Weak current College】 【easily buy projector of parameters analysis --- Power By】 【China power house network.

Projector's parameters, which give many people choose to set a certain threshold, the purchase of technology needs to take the time to understand. But in fact, the projector is like other electronic products, as long as you understand some basic indicators, to buy is no longer difficult. Today we will have some of the main parameters of projector to everyone, convenient charging before the purchase.

Resolution

Is the resolution of the projector and the connected computer. To enable the selected projector rendering the most perfect results, recommendations will be transferred to the computer and the projector's resolution.

Brightness

Brightness projector key performance indicators that are directly related to the Viewer is clearly recognizable graphic text on the screen. In General, for dozens of small and medium-sized conference room, room size to 100 inches to 120 inches (2.13 m-2.44 m) wide screen, there are 2----2500ISO lumens around enough. However, you also need to consider its mobility. In the light particularly sunlight strong environment, projector brightness to the appropriate increase.

Weight

By weight as a standard, the projector is divided into three categories:

1. the portable projector

This is often used to carry out customer design. It is characterized by small size, light weight, generally within the volume size 2kg allowed to carry on the aircraft. As a result of such users are using laptops, XGA resolution is standard, and this type of projector user to minimize the volume, weight, so in brightness and other performance has been sacrificed.

2. desktop projectors

This type of projector volume slightly larger cargo can be permanently installed on the floor or cope with a small amount of mobile use. This type of projector brightness than portable projector to high, the fellow projection image quality also has a large and moderate prices. This projector has flexibility and good price/performance, general business and educational use.

3. fixed-mounted projector

This is a large Conference Center, command centers, large-scale ladder classroom design, installation in place generally no longer move. This type of projector in brightness and image quality is the highest level, and to adapt to different installation and usage, there are many optional options, such as lens, signal processing Board, etc. But the installation must be completed by a professional staff, the maintenance of the more complex, the price is very expensive.

Contrast

Contrast is the projection of the projector screen to the brightest-darkest areas of contrast on the Visual effects of second only to the brightness target, generally the larger the contrast ratio, the image clearer.

Uniformity

Any projector shoot out of the screen there will be a central area and the four corners of the brightness of different phenomena. Uniformity is reflected edge brightness-luminance ratio of Centre, the higher the screen uniformity of uniform consistency, the better.

Lamp life

LCD, DLP projector has an external light sources, their life is directly related to the cost of using the projector, so at the time of purchase must ask the lamp life and replacement costs. Projector lamp life is 2000 hours, replacement cost about $ 1 $/hour.