220-801 · Question #156
A technician needs to install a projector into a conference room with several windows. Which of the following should the technician consider so that the displayed image is always visible?
The correct answer is B. Lumens. In a bright room with windows, a projector's lumen rating determines whether its image will be visible against ambient light.
Question
A technician needs to install a projector into a conference room with several windows. Which of the following should the technician consider so that the displayed image is always visible?
Options
- AResolution
- BLumens
- CAnti-glare filter
- DBulb life
How the community answered
(35 responses)- A6% (2)
- B89% (31)
- C3% (1)
- D3% (1)
Why each option
In a bright room with windows, a projector's lumen rating determines whether its image will be visible against ambient light.
Resolution determines image sharpness and detail but has no effect on how visible the image is in a brightly lit room.
Lumens measure the total luminous output of a projector. In a conference room with windows and high ambient light, a higher-lumen projector produces a bright enough image to overcome the competing light and remain visible. Selecting a projector with adequate lumens is the primary consideration when the installation environment cannot be fully darkened.
Anti-glare filters reduce reflections on flat-panel screens but do not increase projected image brightness or counteract ambient room light on a projection surface.
Bulb life is a maintenance and cost consideration related to how long the lamp lasts, not to image visibility in bright conditions.
Concept tested: Projector lumen rating in high-ambient-light environments
Source: https://learn.microsoft.com/en-us/surface-hub/surface-hub-site-readiness-guide
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