Use of projector is becoming popular nowadays. We use it in office for presentation, in school and colleges for educational purpose, at other places for playing movies and videos on a special occasion. While selecting a projector for yourself, you need to consider the following points;
- The intensity of light it is producing.
- The clarity of the magnified images it produces.
- The size and working of the projector.
- Where you will place the projector.
- The amount of natural light entering a room.
Selecting a suitable projector is not a difficult task, all you need is little information about them.
Know about Lumens?
The intensity of light in a projector is lumen. And the main determining factor for projector selection is the amount of light it produces. The value of lumens affects the brightness of the projector. Projector with 1000 lumens has less intensity than 3000 lumens intensity.
Projector selection depends on light intensity but a projector with good brightness is not always the right choice. Some other factors also need to be considered before buying a projector.
Is lumen that necessary to the projector?
Projector simply display images on the screen with the help of a light bulb. Hence lumen and projector are crucial to each other.
The intensity of light suitable for projector depends on several factors, such as the definition of movies or images, the size of the screen on which display image, a distance of the projector from the screen, and the brightness of the room. The brightness of the room varies from fully darkened to completely bright.
Quality of Images and movies
The projector magnifies images several times on the screen. It does not enhance or decrease the quality of images. A high definition image will appear better on the screen as compared to low-quality images. For enhancing the quality of images you need to clean the lens and reduce the size of the screen. You can adjust the resolution of the projector. Projector light has little role in improving the quality of images. But the light of 1200 lumens is enough to display image as too high lumen will make the images quite dull. Moreover, you can choose the color adjustment feature to highlight the images. The LED light gives bright color while the RGB’s color wheel helps in producing accurate colors.
The size of the display screen
The larger the size of the display screen the more is the intensity of light required. Depending on the size of the screen the intensity of light varies. You can also calculate the lumens needed according to the size of the screen. Some calculations for lumen and screen size that will help you are;
|9 x 5 ft. screen indoor||1400-2400 lumens|
|15 x 8 ft. indoor screen||2500-3000 lumens|
|24 x 12 ft. Outdoor screen||4500-9000 lumens|
Now looking at the calculations as the size of the screen increases the value of lumens also increases. And with the condition either you are in a room or outdoor the lumen value also varies. But keep one thing in your mind, bright light is not always the solution. It can make the image blurry in most of the cases. While apart from that bright light also damages our eyes.
The brightness of the room
Well, most of the time we use projectors indoor like classrooms, theater, and office room. So the amount of light also affects the quality of images. In a room with blinds and curtains, the lumen value is low. You don’t need a projector with high lumen value if brightness is low in the room.
If you are running a projector in a dark room, again keeping lumen high will affect your eyesight and you will also face difficulty in looking towards screen. So you need to adjust the light by switching on the bulbs and adjust your screen brightness.
For home theater screen with dimensions 16:9, The lumen adjustment varies with the amount of light entering the room. For example, if the screen size is 45′ x 80′ with very low light entering the room 1300 lumens light is enough for perfect images. For the same screen size if a moderate amount of light is entering room 1500-3500 lumens light is sufficient. While, in bright daylight entering the room, for the same size of screen 4000-4500 lumens light is sufficient for proper working.
The distance of the projector from the screen
Mostly we hang projectors from the ceiling at such a distance that the image from projector perfectly forms on the screen rather than spreading out or shrink in. You can also place a projector on some even surface like a table. As the distance of the projector increases from the screen, intensity of light decreases and the image appears dim. But a projector too close to the screen will obstruct the viewers from watching the screen directly. And the image formed will be too bright.
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Now coming towards the orientation of the projector and screen size let’s get an idea. Both of them are placed opposite to each other. If the orientation of the screen is against the windows there is a chance that light will fall on the screen. This will affect the quality of videos or images on the screen. So you can adjust the screen brightness by switching off lights in the room.
There is no hard and fast rule for selecting a projector. You can adjust the brightness of the projector by yourself and decide whether you are comfortable with the conditions or not. If you feel there is some need for changes you can adjust it again. The main point is that the LED should be in working condition. And the projector comes from a good manufacturer. You can also contact the operators if you feel any difficulty with their operation.
Now you have narrowed down your requirements for a projector you can buy one for you. Keep in mind that the screen should reflect maximum light to make clear images on the observer’s eye.