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... As trends have moved away from the central light source and towards task lighting, it has become even more important to understand technical issues. ...
Q1 Adaptation levels
Adaptation (also known as accommodation) is the process by which the eye changes its sensitivity depending on the luminances in the visual field. We have all experienced the need to squint when someone turns on a light after being in the dark, or needing a moment to make out forms when entering a dark area from a lit one. ...
There are three basic adaptation levels that need to be considered when designing lighting.
Night adaptation
This is the lowest adaptation level. ...
Artificial lighting adaptation
In artificially lit rooms, no area will or room will be equally lit; a kitchen will be brighter than a hallway, an office desk will be brighter than a meeting room, and an elevator will be darker than a lobby. ...
Daylight adaptation
A designer should never be so enthusiastic about artificial lighting fixtures as to ignore daylight. ... Additionally, the direction from these sources will effect the general light distribution, which may cause dark spots in a room during daytime. ... Both the direct light and the indirect, reflected from surfaces, should be considered.
Approximate Word count = 984
Approximate Pages = 3.9
(250 words per page double spaced)
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