Fluorescent lamp with envelope grooves

Details Fluorescent lamp with envelope grooves Fluorescent lamp with envelope grooves

1975-01-30

1976-10-26

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313204, 313220, H01J 6133, H01J 6142

Patent

active

039886336

ABSTRACT:
A low pressure discharge lamp, particularly a fluorescent lamp, having a plurality of separate and continuous grooves along its length each of which is formed for 360.degree. around the envelope. The groove configuration maintains a generally arcuate cross-section of varying radius to thereby alter the wall recombination rate of the plasma ions with the phosphor. In the embodiments where the cross-section of the envelope as deformed by the groove is non-circular, the invention also acts to increase the plasma arc stream length thereby changing the electrical and luminous properties of the lamp. A method and apparatus for making the grooves using a plurality of heat sources is also described.

REFERENCES:
patent: 3129085 (1964-04-01), Olsen et al.
patent: D198268 (1964-05-01), Thorington et al.
patent: D218976 (1970-10-01), Venema

Affiliated with

Also associated with

Rating

Fluorescent lamp with envelope grooves does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluorescent lamp with envelope grooves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorescent lamp with envelope grooves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-187199