With the increasing popularity of projection equipment, projectors are often touched in daily life. In the case of a variety of projectors with different styles and prices, the basic parameters and basic meanings of the projectors should be selected by the user during the purchase. Some understanding, here is a brief introduction to some of the conceptual knowledge of the projector.
A projector, also known as a projector, is a device that can project images or video onto a screen. It can be connected to a computer, VCD, DVD, BD, game console, DV, etc. through different interfaces to play the corresponding video signals. Projectors are widely used in homes, offices, schools, and entertainment venues. Depending on the way they work, there are different types of CRT, LCD, and DLP. Pay attention to the process of purchasing the projector:
I. resolution of the projector
The resolution of the projector is expressed by multiplying the number of horizontal pixels in the picture by the number of vertical pixels. Common resolutions and representations are as follows:
SVGA: 800x600 economical projector common resolution
XGA: Resolution for 1024x768 mainstream business and educational projectors
SXGA+: 1400x1050 resolution for high-end projectors for high-end professional applications such as images
480p: Resolution for 852x480 low-end home projectors
720p: Resolution for 1280x720 or 1280x768 mid-range home projectors
1080p: Resolution for 1920x1080 or 1920x1200 high-end home projectors
Uniformity
This is a concept related to brightness, the ratio of the intermediate brightness of the projected picture to the surrounding brightness, which is generally defined as 100%. The brightness of the image projected onto the screen by the projector is not completely uniform. In some places, the brightness will be higher, and in some places, the brightness will be lower. Of course, the more uniform the brightness distribution of the projector, the better.
Three. Contrast
The ratio of black to white in the projected image of the projector, that is, the gradient from black to white. The larger the ratio, the more gradients from black to white, and the richer the color.
Four. Projection screen size
It refers to the size of the diagonal of the projected screen. To deliver the required size, the projector needs to be mounted at a corresponding distance from the projection screen. At present, mainstream projectors can easily deliver large screens of more than 100 inches, and some high-brightness engineering projectors can also deliver images of more than 200 inches.
V. Noise
Users who have not used the projector may not know that the projector will make noise when it is working. The noise of some projectors can seriously interfere with the consumer's viewing, which is unbearable. So when buying a projector, consider low noise should be an important part of the purchase.
6. Brightness
Most projector brightness has reached 2000 ANSI lumens. With the same indicators, the higher the brightness, the higher the price of the projector.
The price of the projector is relatively high, generally around 10,000 yuan. Therefore, when you choose to buy a video camera, you should start from the actual demand and choose a product that is suitable and affordable. I hope that in the selection process, everyone can Refer to this method to choose the projector that suits you.
Fruit Basket is a necessary product for families and hotel if also a good decoration decoration, improve your quality of life enjoy a more simple and comfortable high end quality of life.
Our factory has been established for 15 years has a strong design business team and a strong production line can provide you with perfect service and the highest quality assurance.
Decorative fruit bowl,Creative Fruit bowl,Hollow Fruit bowl,Stainless steel fruit bowl,Fruit bowl
Shenzhen Lanejoy Technology Co.,LTD , https://www.szlanejoy.com