UFC 3-530-01
22 August 2006
Luminance of Room Surfaces: Luminance, or brightness, of the room
surfaces determines the perception of the conference room. With a bright,
uniform ceiling and evenly washed walls, the space will feel bright and
visually comfortable.
Modeling of Faces or Objects: Because presentations and meetings are
typical tasks in conference rooms, the lighting system should model people
comfortably and accurately. Lighting that softly illuminates individual's
faces without harsh shadows or excessive contrast reveals facial
expressions and enhances such non-verbal communication.
System Control and Flexibility: Control of luminaires should allow for
multiple scenes or uses of the space. For example, a slide presentation
may require lower ambient light levels, but adequate light on the table for
occupants to take notes or read a handout. Window shades can darken the
room for presentations. Other uses such as meetings may require more
light.
Target Horizontal Illuminance ( 10%): 300-500 lux (30-50 fc)
DISCUSSION:
The general ambient lighting must include an indirect component. A system comprised
of downlighting only poorly illuminates room surfaces and puts harsh shadows on
occupant's faces. Using an indirect component as part of the overall system will create
a brighter space with better room surface luminances and render people more
comfortably.
The lighting in a conference room should adapt to multiple uses of the space. At times,
a presentation may require light on a white board or presentation wall. Other
presentations may require a darker space for slide shows but still provide some light on
the table so occupants can still take notes. For meetings, general lighting from a
pendant over the table may be all that is required. Zone the luminaires separately to
allow for the creation of multiple scenes depending on the space's use.
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