housing decisions p. 395-396 how are these mounted? which way do they direct light? valance lighting...
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HOUSING DECISIONSp. 395-396
How are these mounted?
Which way do they direct light?• Valance lighting
• Bracket lighting
• Cornice lighting
• Cove lighting
• Recessed down lights
• Surface mounted down lights
• Wall washers
• Soffit lighting
• Luminous ceilings
• Strip lighting
• Track lighting
p. 391-394
Define each of these types of lighting.
• General lighting– Direct– Indirect
• Local (Task) lighting• Accent lighting• Structural lighting• Nonstructural lighting
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OBJECTIVE 4.05:COMPARE various forms of
lighting.
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Lighting has various functions. Lighting can:
1. Make a task easier to complete
2. Contribute to safety
3. Add beauty and set a mood
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LIGHTING SOURCES
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Natural light comes from natural sources, such as the sun or a flame.
Colors are more true in natural lighting.
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ARTIFICIAL LIGHT includes:
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INCANDESCENT LIGHTING is produced by electricity passing through a filament in a glass bulb.
This light tends to be warm & flattering.
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FLUORESCENT LIGHT is produced when chemicals inside a glass tube transform ultraviolet rays.
Costs more than incandescent, but lasts a long time.
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Fluorescent light comes in colors;
warm-white and cool-white
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• Cool-white light is very efficient, blends well with sunlight, and makes colors look good
• Warm-white light is cost efficient but is not flattering to some colors
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COMPACT FLUORESCENT BULBS (CFLs) are fluorescent lights that screw into regular incandescent light
sockets.
CFLs save energy and last for about 9000 hours.
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FIBER OPTIC light flows through hair-like strands of glass. Does not give off any heat.
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LIGHT EMITING DIODES (LEDs) are made of crystals on silicon chips about the size of a grain of salt.
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CATEGORIES OF LIGHTING
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1. General lighting provides a uniform level of lighting throughout the room.
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• DIRECT LIGHTING is a type of general lighting. • Direct lighting shines directly toward an object.
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• INDIRECT LIGHTING is also a type of general lighting.• Indirect lighting shines up and reflects off of ceilings and
walls.
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2. LOCAL or TASK LIGHTING focuses light on an area where it is most needed.
Provides extra light for reading, cooking, sewing, etc.
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3. ACCENT LIGHTING is very bright and is aimed directly on a specific object to create a dramatic effect.
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WAYS TO DELIVER LIGHT
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NONSTURCTURAL LIGHTING is not built in and can be easily moved and changed.
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STRUCTURAL LIGHTING is built-in and wiring is usually hidden.
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Valance Valance Lighting:Lighting:
• mounted mounted over a over a window window
• hidden by a hidden by a valancevalance
• shines light shines light up and down.up and down.
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BRACKET LIGHTS
• mounted on a wall
• light shines up and down.
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CORNICE LIGHTING• mounted near the ceiling• shines downward.
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COVE LIGHTING•mounted near the ceiling•directs light upward.
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RECESSED DOWNLIGHTS (can lights) direct a beam of light from the ceiling downward.
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SURFACE MOUNTED DOWNLIGHTS are similar to recessed lights, except the “can” is visible.
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WALL WASHERS spread light over a wall from ceiling to floor.
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SOFFITT LIGHTING is an enclosed box-like structure with a diffuser at the bottom.
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LUMINOUS CEILING PANELS are fluorescent tubes placed under plastic panels.
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TRACK LIGHTING is several light fixtures mounted on a metal strip.
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STRIP LIGHTS are rows of STRIP LIGHTS are rows of incandescent bulbs.incandescent bulbs.
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LIGHTING PROJECT
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A. Nonstructural, General, Lamps
B. Structural, General, Chandelier/Fan
C. Structural, Accent, Wall Washer
A
B C
AA
C
B