Fluorescent lamp using multi-layer phosphor coating

Details Fluorescent lamp using multi-layer phosphor coating Fluorescent lamp using multi-layer phosphor coating

1985-04-22

1986-11-18

Levy, Stewart J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

H01J 163, H01J 6144

Patent

active

046238166

ABSTRACT:
A fluorescent lamp utilizing a dual phosphor layer coating is disclosed producing efficient white color illumination at a lower cost than conventional phosphor coatings of the same type. The base layer in the phosphor coating comprises a conventional calcium haloapatite phosphor whereas the top phosphor layer comprises a tri-phosphor blend including a lanthanum cerium orthophosphate phosphor activated with terbium ion as the green color component along with a modified europium-activated yttrium oxide phosphor as the red color component.

REFERENCES:
patent: 3937998 (1976-02-01), Verstegen et al.
patent: 4075532 (1978-02-01), Piper et al.
patent: 4088923 (1978-05-01), Manders
patent: 4423349 (1983-12-01), Nakajima et al.
patent: 4447756 (1984-05-01), Kohmoto et al.

Affiliated with

Also associated with

Rating

Fluorescent lamp using multi-layer phosphor coating 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 using multi-layer phosphor coating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorescent lamp using multi-layer phosphor coating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1619169