2011年9月14日星期三

History of Lighting

The lighting talking here means electrical lighting.
Lighting, or illumination is making use of processed light to achieve practical effect.
Lighting includes both light sources (usually we call lamps) and fixture, in which the lamp is fixed. Under specific circumstances, people use direct or indirect sunlight for lighting.
Main purpose of proper lighting is improving the appearance of an area. Without proper lighting, failed to achieve the effect we want and waste too much energy.
Afterward, we will talk three generations about the development of lighting.
Tungsten Lighting – Incandescent lamp
Fluorescent Lighting – Tube and Compact Fluorescent Lamp
LED Lighting -Light Emitting Diodes