Light filament formed from carbon nanotubes
AssigneesTsing Hua University, Hon Hai Precision Industry Co., Ltd.
InventorsKaiLi Jiang, ShouShan Fan, QunQing Li
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Abstract
A light filament (206) formed from carbon nanotubes is characterized by high mechanical strength and durability at elevated temperatures, a high surface area to volume ratio, and high emissivity. Additionally, electrical resistance of the light filament does not increase with increasing temperature as much as electrical resistance of conventional metallic light filaments. Accordingly, power consumption of the light filament is low at incandescent operating temperatures.
Claims7
A light filament comprising a carbon nanotube yarn, the carbon nanotube yarn being configured for emitting light by application of an electric current to said carbon nanotubes.
In assembly,
- a carbon nanotube yarn comprising a plurality of carbon nanotube bundles which are joined end to end by van der Waals attractive force;
- and
- a pair of opposite DC electrodes between which said carbon nanotube yarn back and forth connectively extends.
Dependencies are inferred from the claim text.