Lighting technology
Introduction:
Thomas Alva Edison successfully invented electric lamp by using tungsten material as lamp filament in 1879.100 years later to Today,the tungsten material for its superior performance is always the first choice as lighting material although the lighting industry has undergone tremendous changes. technological innovation of Lighting industry have made us a deeper understanding for tungsten material properties and higher pursuit for tungsten knowledge. In order to meet the requirements for tungsten materials performance of lighting industry , independent research and development have beed made to produce fine grain tungsten products.
Electric light source classification:
Incoherent light source
Coherent light source(Laser)
Tungsten and molybdenum are utilized for electric light source due to their properties:
High melting point
Low vapor pressure
High temperature strength
Adjusted coefficient of thermal expansion
Excellent thermal conductivity
Types of electric lighting include:
Incandescent light bulbs
Arc lamps
High-pressure discharge lamps
LED (Light emitting diodes)
Cold cathode fluorescent lamps
Extreme ultraviolet light
Product Links:
Tungsten Wires
Tungsten Rods
Tungsten crucible
Tungsten boat
Application