The projector a few years ago is returned to the masses is a very strange thing, in recent years the ceaseless development as umbriferous technology, make the cost of projector got very good improvement, make its price also had substantially drop, this once secret product also sadly become of broad consumer at the moment. In the modern office that seeks efficient, fast rhythm nowadays, projector serves as new-style and video equipment, all sorts of business affairs environments can see its figure. Be in at the same time advertisement respect, projector also is producing his effect. Believe to a lot of friends are in large market, sell field and exhibit the place such as the meeting to see the picture can show on the ground, the person is OK above go playing game to wait a moment, this kind of system interacts namely umbriferous system, its show the component is projector, the kind that carries hoisting is umbriferous, the hoisting that sees with average user place nevertheless is different, the means that its are umbriferous lens head over heels is umbriferous into what resemble, the application of this kind of system in advertisement respect is very wide also, establish such systems to have professional company commonly. Average nevertheless user also can understand his the thing of each respect, the author discusses together below among them main part -- projector the demand of each respect.
One, umbriferous brightness
Brightness can say is the oldest function index of projector, because interactive and umbriferous system basically is used at all sorts of large market, monopolistic and exhibit the place such as the meeting, the environmental light of these places is compared commonly bright, should project seesaw pattern picture needs the picture that gives high-definition clear taller umbriferous brightness, specific need decides projector brightness according to the environmental light of the user, but general cannot under 4000 lumen.
2, umbriferous distance
The size of umbriferous distance and umbriferous picture becomes direct ratio commonly, if want bigger umbriferous picture, that needs longer umbriferous distance, because interactive and umbriferous system uses the means that is hoisting, and projectile picture double show go up in the floor, because this is umbriferous,be apart from very old rate to attend a meeting get dimensional limitation, general very cannot big. And the promotion that umbriferous distance crosses to also can bring about umbriferous brightness to need greatly, generally speaking umbriferous distance and brightness also become direct ratio, because this user needs the actual condition decision according to oneself. If itself space height is not great, and need big picture, that proposal user is bought have projector of short anxious umbriferous ability, with common projector 4 meters umbriferous photograph of 100 吋 picture is compared, short anxious umbriferous have shorter umbriferous distance to project bigger umbriferous picture.