NCIDQ IDFX Practice Exam

Question: 1 / 590

What factors influence the extent of the direct glare problem?

Light intensity and ceiling height

Brightness of the source and position

The extent of the direct glare problem is significantly influenced by the brightness of the light source and its position relative to the observer. Brightness refers to how much light is emitted from a source, and a brighter light can cause discomfort and visual confusion if not positioned correctly. The position of the light source is also critical; for instance, if a light source is directly in the line of sight or positioned improperly, it can create a harsh contrast with the surrounding environment, leading to glare.

In contrast, while factors like light intensity and ceiling height, color of the wall and furniture arrangement, and the type of task and number of light fixtures may affect overall lighting quality and comfort, they do not specifically pinpoint the direct causes of glare. Brightness and position directly relate to how light interacts with human vision, making them fundamental in understanding glare issues.

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Color of the wall and furniture arrangement

Type of task and number of light fixtures

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