Method of manufacturing a light filament from carbon nanotubes

Details Method of manufacturing a light filament from carbon nanotubes Method of manufacturing a light filament from carbon nanotubes

2005-10-25

2005-10-25

Santiago, Mariceli (Department: 2879)

Electric lamp or space discharge component or device manufacturi

Process

Electrode making

C445S049000, C445S051000, C423S447100, C423S447300

Reexamination Certificate

active

06957993

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 metallic light filaments. Accordingly, power consumption of the light filament is low at incandescent operating temperatures. A method for making a light filament made of carbon nanotubes includes the steps of: forming an array of carbon nanotubes (20); pulling out carbon nanotube yarn (204) from the carbon nanotube array; and winding the yarn between two leads (30) functioning as electrodes to form the light filament.

REFERENCES:
patent: 6183714 (2001-02-01), Smalley et al.
patent: 6232706 (2001-05-01), Dai et al.
patent: 6440763 (2002-08-01), Hsu
patent: 6628053 (2003-09-01), Den et al.
patent: 6630772 (2003-10-01), Bower et al.
patent: 6682677 (2004-01-01), Lobovsky et al.
patent: 6720728 (2004-04-01), Den et al.
patent: 6780075 (2004-08-01), Okamoto et al.
patent: 2002/0121856 (2002-09-01), Tsai
patent: 2004/0053053 (2004-03-01), Jiang et al.
patent: 2004/0053780 (2004-03-01), Jiang et al.
patent: 129029 (1977-12-01), None
patent: 54094783 (1979-07-01), None

Affiliated with

Also associated with

Rating

Method of manufacturing a light filament from carbon nanotubes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing a light filament from carbon nanotubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a light filament from carbon nanotubes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3444826