Fluorescent lamp having ultraviolet reflecting layer

Details Fluorescent lamp having ultraviolet reflecting layer Fluorescent lamp having ultraviolet reflecting layer

1990-02-14

1991-04-16

Husar, Stephen F.

Illumination

Modifier mountable on light source envelope

362260, 362293, 313112, 313486, 313489, 313635, F21M 314

Patent

active

050087894

ABSTRACT:
A fluorescent lamp of this invention includes an ultraviolet reflecting layer of a nonemission material essentially consisting of .alpha.-alumina, and a light-emitting layer. The nonemission material is a white powder having an average grain size of 0.05 .mu.m to 2 .mu.m. The light-emitting layer is formed on the discharge generation region side of the ultraviolet reflecting layer. According to this invention, ultraviolet ray having passed through the light-emitting layer without being absorbed therein are reflected by the ultraviolet reflecting layer and are radiated onto the light-emitting layer again. For this reason, the light-emitting layer is more frequently excited with the ultraviolet rays to increase a luminous flux.

REFERENCES:
patent: 4079288 (1978-03-01), Maloney et al.
patent: 4924141 (1990-05-01), Taubner et al.

Affiliated with

Also associated with

Rating

Fluorescent lamp having ultraviolet reflecting layer 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 having ultraviolet reflecting layer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorescent lamp having ultraviolet reflecting layer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-425635