UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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INTERIOR LIGHTING DESIGN
The basic aim of good lighting design should be to create a lighting installation that provides both good task visibility and a satisfactory visual environment.
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GENERAL LIGHTING
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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GENERAL LIGHTINGGeneral lighting produced by a regular array of luminaires with or without an indirect components giving approximately uniform horizontal maintained illuminance all over the spaceFlexibleBlandEnergy consumingIn some situations luminaires with a special light distribution are preferred so that the light comes predominantly from one direction.
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LOCALIZED LIGHTING
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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LOCALIZED LIGHTING
Relating the light to the working zones.Maintained task illuminance at work stations, plus “spilled over” lower illuminance at circulation areasLess flexibleMore energy efficient but more difficult to designMaintenance can be more critical than general lighting
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LOCALIZED LIGHTING
The average illuminance on the other areas should not be less than one-third of the average illuminance over the work areas.
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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LOCAL LIGHTING
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LOCAL LIGHTING
Task lighting provided by additional luminaires placed at small distance from visual task plus general lighting.Flexible.Energy efficient.More individual control.Expensive.Local lighting inevitable if there is need for accent lighting.
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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LOCAL LIGHTING
General surround average illuminance should not be less than one-third of the average task illuminance.
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MAINTAINED ILLUMINANCE
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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ILLUMINANCES FOR CONSERVATION
150 00050Highly light-sensitive,
e.g. textiles, water colours, prints, drawings, skins, botanical specimens
600 000200Moderately light-sensitive,
e.g. oil or tempera paints, undyedleather, bone, ivory, horn, wood and lacquer.
No limitNot restrictedObjects insensitive to light,
e.g. metal, stone, glass, jewellery, enamel
Maximum cumulative
annual exposure (lux-hours)
Maximum illuminance
(lux)
Conservation category
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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COLOUR TEMPERATURE
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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Tungsten GLS
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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Fluorescent halo-phosphate
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Fluorescent halo-phosphate
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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Fluorescent triphosphor
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Fluorescent triphosphor
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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Multi-band phosphor fluorescent
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SOX
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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SON
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MBF
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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COLOUR TEMPERATURE
Group 1 warm lamps for relaxation spaces less than 300 luxGroup 2 intermediate lamps for blending with daylightGroup 3 cool lamps for working interiors with high illuminance level
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COLOUR RENDERING
UNIVERSITY OF HONG KONGFaculty of Engineering
M.Sc.(Eng) in Building ServicesMEBS 6002 Lighting Engineering
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