How much projector brightness do you need?
By GB Blog Official 2016-11-01 14527 0
Projector brightness is rated in lumens. A lumen rating indicates the overall brightness that a projector can produce. As lumens are actually dimensionless, the output lumen of the projector is static and is not related to the size of the image. However, the image size has everything to do with how bright the image you see is. For example, the larger the image you are trying to create, the brighter the projector needs to be in order to overcome ambient light and still see a nice, vibrant, clear image.
Below you can find a set of standard rules for helping you select a projector powerful enough to overcome the environment issues you can encounter. These rules are simple guidelines to use for a bright, high-contrast image, but they are not set in stone. Projectors with lower outputs than this can still display a viewable image, but they may not be perfect when watching business related materials.
Example one: when you are creating an image that is equal to 6 feet in width.
- In a 100 percent light controlled room: 1000LM will be sufficient.
- In a room with some ambient light, but no direct lighting on the space you plan to project the image: 1000LM will be sufficient.
- In a room with the lights on, but no direct light over the area where you will project the image: 1000 to 1200 lumens will be sufficient.
- In a room with bright ambient light: 1400 to 1500 lumens will be sufficient.
Example two: When you are creating an image over 10 feet wide but less than 14 feet wide.
In a 100 percent light controlled room: 2000 lumens should be sufficient.
In a room with some ambient light, but no direct lighting on the space you plan to project the image: 2000 to 2300 lumens should be sufficient.
In a room with the lights on, but no light directly over the area where you will project the image: 2300 to 2700 lumens should be sufficient.
In a room with bright ambient light: 2700 to 3200 lumens should be sufficient.
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