Lighting Flashcards
is the deliberate use of light to achieve a practical or aesthetic effect, both natural and artificial sources that enhances tasks, improves appearance of the area, and creates a positive psychological effects
Illumination and lighting
it is a source of light from the sun during daytime, by using windows, skylights.
Natural light
is a source of light from man-made electrical sources
Artificial light
is a method of lighting known as background lighting, for uniform illumination of the general area
General lighting
is a method of lighting that provides a high level illumination over a small area, with a surrounding area of lower intensity, it is opposite to general illumination
Local lighting
is a method of lighting that provides a strong illumination of specific light for a specific task
Task lighting
is a method of lighting that is for revealing and enhancing the texture, color, and space for visual satisfaction
Accent lighting
is a method of lighting that provides an information in places with total darkness, it is utilitarian for the promotion of safety and comfort
Information lighting
used to emphasize an object by illuminating with a strong light
Highlight
illuminates something from behind
Backlight
a light coming from the side
Sidelight
a diffused light that produces little contrast and poorly defines shadows
Soft light
a direct light that produces high contrast and defines shadows
Hard light
a lighting distribution that 90-100% towards the ceiling and upper walls
Indirect
a lighting distribution that 60-90% upwards, 40-10% downwards
Semi-indirect
equal distribution of light upward and downward
Direct-indirect
a lighting distribution that 60-90% downwards, 40-10% upwards
Semi-direct
a lighting distribution that 90-100% downwards
Direct
a lighting distribution in all sides
General
a lighting system that shields a light by a panel parallel to the wall, which is attached to the ceiling giving a downward lighting
Cornice lighting
a lighting system that shields the light by a ledge attached to the wall creating an upward lighting
Cove lighting
a lighting system that shields the light by a panel parallel to the wall, that provides both upward and downward lighting
Valance lighting
is an artificial light that works by incandescence, w/ an enclosed filament that when heated through the lamp base, it emits a visible light. It is the first modern electric lamp made during 19th century.
Incandescent lamp
(halogen) is also called a quartz-iodine lamps, which uses a halogen gas cycle in preventing rapid depreciation of the lamp filament. It is made due to the short lifespan of a bulb, and it also emits a very high temperature.
Tungsten
is a part of an incandescent lamp that is like a thread like conductor that when heated to incandescence by the passage of an electric current
Filament
is the glass housing of a lamp
Bulb
a part of a bulb that connects to the lamp holder
Lamp base
is a general round shape of bulb
A bulb
flame-shaped bulb; low-wattage, decorative incandescent
B bulb
cone-shaped bulb; low-wattage, decorative incandescent
C bulb
candle-shaped bulb; low-wattage, decorative incandescent
CA bulb
a reflector bulb of blown glass for incandescent & high intensity discharge lamps; internal reflective coating; either clear or frosted glass front
R bulb
is a parabolic aluminized reflector bulb cast-glass for incandescent; high-intensity discharge lamps
PAR bulb
a ellipsoidal reflector bulb having a internal reflector and collects lights and redirects dispersed pattern at some distance
ER bulb
is an A bulb having a hemispherical reflective silver bowl opposite to the lamp base too decrease glare
A/SB bulb
a globed-shaped bulb; low brightness for exposed use
G bulb
Pear-shaped bulb for large incandescent lamps
PS bulb
Straight-sided bulb; low wattage, decorative incandescent lamps
S bulb
a multifaceted reflector bulb for tungsten-halogen lamps; polished reflector arranged in discrete segments to provide desired beam spread
MR bulb
a cylindrical glass tube, sealed at both ends, containing a mixture of inert gas(argon and mercury). it has a cathode that supplies electron s to start and maintain the mercury arc or gaseous discharge. UV light is absorbed by the phosphors, and a coated inside.
Fluorescent Lamp
is a required material that regulates the flow of the power in a fluorescent lamp
Ballast
the emission of radiation by a substance when exposed to external radiation
Fluorescence
any of a number of substances that emit light when energized by radiation
Phosphor
a type of lamp designed to fit into roughly the same space of a fluorescent but has a fluorescence advantage. It has a longer life, and uses less energy.
Compact Fluorescent Lamps
a cold cathode lamp emitting a glow when a high voltage is applied across two electrodes in a neon filled glass-tube. It discharges a lamp even not heated.
Neon Vapor Lamps
Unit of light of luminous flux.
Lumens
The amount of lumens falling on an area, one square foot, one foot away.
Footcandle
Is the amount of lumens falling on area one square meter, one meter away.
Lux
Unit of light density.
Candlepower
Unit of brightness.
Footlambert
A term commonly applied to a can-type of recessed incandescent downlight.
High Hat
Recessed or semi-recessed lighting unit with a rotating spherical element that may be turned to project light to any direction.
Eye Ball
