C4-7:8 Flashcards
Sometimes called “general lighting”. Provides uniform illumination throughout the space.
Ambient lighting
Sometimes called “task lighting”. Illumination provided for specific visual function. It can influence the effectiveness of the individual performing the task.
Local Lighting
It is directional lighting used to emphasize a particular object or area.
Accent Lighting
A light source that adds a quality of interest to the space. Combines with other types of lighting to give an overall “feel” to a room that serves little purpose other than to look attractive.
Decorative Lighting
It is a secondary lighting system that provides backup illumination when the power supply to the normal lighting system is interrupted.
Emergency & Safety Lighting
Required in the critical care and emergency spaces found in hospitals, police, fire protections and crisis management areas.
Emergency Lighting
Enables normal activities to continue substantially unchanged. Powered by an emergency generator or batter backup system.
Stand-by Lighting
Ensures the safety of people involved in a potentially hazardous process.
Safety Lighting
To ensure that an escape route can be effectively identified and used in case of failure of normal lighting system.
Escape Lighting
Illuminated signage used to provide clear directions for an emergency exit of building occupants.
Exit Lighting
A luminaire that is hang with a cord, chain, or tube that enables it to be suspended from a ceiling or other support. It broadcasts light over the entire space.
Pendent
A luminaire where a shielded light source directs its light to the ceiling, where it is reflected back to the space.
Uplight
A luminaire that is usually attached to or recessed in the ceiling and emits a concentrated light downward.
Downlight
A type of downlight that is a recessed, canister-shaped luminaire with a shielded lamp that emits light downward.
High Hat
Are mounted above the ceiling or behind a wall or other surface do that any visible projection of light is insignificant.
Recessed Luminaires
A decorative, wall-mounted luminaires that provide ambient illumination. They can direct light upward, downward, or in all directions.
Scones
Are used in high-ceiling areas, 20 ft (6 m) or higher, that require a unform illumination.
High Bay Luminaires
Are more compact. They are designed for use in low - to medium ceiling areas, 12 to 20 ft (3 to 6 m). They are typically used for general illumination in offices, retail spaces, and loading dock areas.
Low Bay Luminaires
A luminaire that is designed to emit an intense, concentrated beam of light with usually no more than a 20° divergence (spread) from where it is directed.
Spotlight
A luminaire that emits an intense light that is broader than a spotlight and that is capable of being pointed in any direction.
Floodlight
Is illumination where light received at the work plane or light illuminating an object is incident predominantly from a particular direction.
Directional Lighting
A directional lighting installation where luminaires are attached to and are moveable along a metal track. A more subtle method of directional lighting involves the use of one of the many different recessed downlights.
Track Lighting
Is a lighting installation in which the light on the working plane or on an object is not incident predominantly from a particular direction.
Diffused Lighting
Is a lighting component such as a translucent glass refractor that redirects or scatters the light from a source.
Diffuser
