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