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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.

Hardware

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)
  • A
    6% (2)
  • B
    89% (31)
  • C
    3% (1)
  • D
    3% (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.

AResolution

Resolution determines image sharpness and detail but has no effect on how visible the image is in a brightly lit room.

BLumensCorrect

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.

CAnti-glare filter

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.

DBulb life

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

Topics

#projector#lumens#display brightness#ambient light

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