Single-ended low pressure discharge lamp and method of manufactu

Details Single-ended low pressure discharge lamp and method of manufactu Single-ended low pressure discharge lamp and method of manufactu

1982-09-07

1984-04-03

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313318, 445 26, H01J 192, H01J 926

Patent

active

044410506

ABSTRACT:
Two U-shaped inner tubes, each of which have a straight leg which is hermcally sealed about a preheatable electrode, are sealed into the upper, oval reception section of a preshaped flare. The seal also includes the exhaust tube and the lead-in wire pairs supporting the preheatable electrodes and is carried out as a press seal in one single working step. The other legs of the U-shaped inner tubes remain open. The lower, outwardly facing rim of the preshaped flare which is concentric with the longitudinal lamp axis is sealed to an outer envelope whose neck drops off during this sealing process and which surrounds the U-shaped inner tubes and contains a gas and/or metal vapor filling. The inner tubes are preferably coated with a three-line phosphor, and the outer envelope is provided with a light diffusing coating. The single-ended low-pressure discharge lamp may largely be manufactured on conventional machines and may be directly used in place of an incandescent lamp as a compact lamp of low electrical wattage when a starting and operating circuitry is incorporated in a conventional type of base used for incandescent lamps. Also disclosed are methods of manufacture of such a lamp.

REFERENCES:
patent: 4199708 (1980-04-01), Lauwerijssen et al.

Affiliated with

Also associated with

Rating

Single-ended low pressure discharge lamp and method of manufactu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Single-ended low pressure discharge lamp and method of manufactu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single-ended low pressure discharge lamp and method of manufactu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-669207