LIGHTING & LIGHT FIXTURES
Lighting has become an important element of interior designing. Worldwide
interact in illumination, a gathered momentum in early 20
th
century. Today, there
is a vast range of light in myriad colors, which are used both aesthetically and
innovatively un any interior.
A key role in creating bright atmosphere within an area. It should be decorative as
well as functional. It should contribute to character and atmosphere of a room. To
achieve the right lightening in an area the direction and quantity of light in any area,
the direction and quantity of light must be chosen for the right effect and function.
The unit of illumination is
LUX.
Types of Lighting
Natural Lighting –
It is freely available and not involving any expenditure,
without much power consumption. The disadvantage is that it does not light up
the room uniformly and is not constant. There are 3 types of light- sunlight,
candlelight and fire.
Artificial Lighting –
this is done with the help of incandescent or
fluorescent bulbs:
1)
Incandescent lighting-
a tungsten filament is sealed in a glass bulb, which
when heated to a point begins to glow. The filament is in the form of a coiled
wire that is very thin and stretched tight. The glass used is made of standard
lime glass or heat resistant, borosilicate glass
,
which permits high voltage to be
used. Some bulbs are flushed in acid solution inside of the bulb to make it
frosted.
2)
Fluorescent lighting-
it consists of a sealed glass tube that contains a small
amount of mercury and argon gas and electrified at each end. The inside of the
tube is coated with a fluorescent material like phosphorous. When an electric
current is sent through the tube the mercury vapor gives out ultra violet light that
is converted into visible light by phosphorous.
