High pressure sodium vapor lamp with PCA arc tube and end closur

Details High pressure sodium vapor lamp with PCA arc tube and end closur High pressure sodium vapor lamp with PCA arc tube and end closur

1986-09-26

1987-11-17

DeMeo, Palmer C.

Electric lamp and discharge devices

With gas or vapor

Having electrode lead-in or electrode support sealed to...

313639, H01J 6136, H01J 6120

Patent

active

047076364

ABSTRACT:
An improved high pressure sodium lamp is described utilizing a polycrystalline alumina arc tube that is hermetically sealed, at least at one end, with a polycrystalline alumina end closure. Said end closure novel member is shaped as a flat disc having the contour and size permitting partial insertion into the internal opening of said arc tube, along with having a larger size projection located adjacent one major surface of said disc externally of said arc tube and with said disc being hermetically sealed directly to said arc tube. In a preferred embodiment, said end enclosure member further includes a central aperture through which extends one of the thermionic electrodes contained within said arc tube.

REFERENCES:
patent: 3363134 (1968-01-01), Johnson
patent: 3564328 (1971-02-01), Bagley et al.
patent: 4065691 (1977-12-01), McVey
patent: 4442378 (1984-04-01), Frey et al.
patent: 4539511 (1985-09-01), Denbigh et al.
patent: 4545799 (1985-10-01), Rhodes et al.

Affiliated with

Also associated with

Rating

High pressure sodium vapor lamp with PCA arc tube and end closur does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High pressure sodium vapor lamp with PCA arc tube and end closur, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High pressure sodium vapor lamp with PCA arc tube and end closur will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1451880