Lighting CHS Interior Design
Natural Light Sunlight that enters the house through windows, doors, skylights, etc. North or East—Cool, bluish cast South or West—Warm, orange tones
Incandescent Light Light bulb most people use. Burns about 700-1000 hours.
Fluorescent Lighting Lasts up to ten times longer than an incandescent bulb. Use less electricity and produce no damaging heat. Not as homey and comfortable.
Halogen Lighting brighter than incandescent bulbs. Light is more similar to that of sunlight. Bulbs burn whiter than incandescent bulbs.
LED Light-Emitting Diodes Last 100,000 hours Consumes less energy Gives off less heat Initial cost is more
Light Temperature Light Temperature is rated in Kelvin Orange (incandecent) 2700-3000 K White (halogen) 3000-3600 K Blue (fluorescent) 3000K for warm 4000K for cool
Color Rendering Index (CRI) Indicates how well light from a source will bring out the true color. CRI scale is from 1-100 100=color rendering of daylight The closer the CRI is to 100 the more accurately the light will reproduce color
Measuring Light Wattage- The amount of electricity that is used Lumen- the amount of light a bulb produces Foot-candle- the amount of light a standard candle gives to an object 1 foot away 1 lumen per sq ft=1 foot-candle
Properties of Light Reflected light Absorbed light Diffused light
Reflected light Light that bounces of a surface Shiny and light surfaces Try to avoid glare
Absorbed Light Light that is drawn in by a surface Rough textures and dark colors
Diffused Light Light that scatters over a large area Light diffusers Soft appearance Light diffusers Frosted glass Lamp shades
Functions of Lighting General lighting Task lighting Accent/Decorativ e lighting
General Lighting Overall lighting or Ambient Lighting- provides a uniform level of light of an entire space. Direct lighting- light shines directly towards an object and provides the most light possible to a specific area Indirect Lighting- lighting directed toward a surface and reflected into the entire room
Task Lighting Used in areas where specific activities require more light. For example: reading, cooking, hobbies, working Task lighting can also serve as general lighting
Accent Lighting Used to draw attention to specific areas or objects.
Layers of lighting
Lighting Fixtures—Can and Track
Lighting Fixtures—Ceiling and Floor
Lighting Fixtures—Sconce and Pendant
Lighting Fixtures--Novelty