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US 5,833,349 AGranted
Phosphorescent lamp shade
OwnerWayne B. Appleinventor
Life of this patent
Estimating the term…
Abstract
A lamp having a lamp shade that phosphesces after the light from the bulb is extinguished. The glowing lamp shade provides a low level light that comforts children who are afraid of total darkness and allows them to drift off to sleep. The life of the afterglow is preferably about twenty minutes to half an hour. Decoration is developed on the surface of the lamp shade by painting opaque designs or attaching opaque paper or cloth on the surace of the lampshade.
Claims12
A lamp shade for positioning over a lamp that presents a dark outline shape of a figure that is viewable to a viewer, said lamp shade comprising:
- a translucent plastic sheet formed into one of:
- (a) a frustum having an open top and open bottom;
- (b) a cover;
- an entire area of said plastic sheet containing phosphorescent additive;
- means for supporting said formed plastic sheet over at least one light bulb;
- said phosphorescent additive dispersed substantially uniformly throughout said entire translucent plastic sheet providing that said sheet glows for a period of time after said at least one light bulb is extinguished;
- a region of said plastic sheet covered by opaque material having the outline shape that is decorative to the viewer of said lamp shade providing that said lampshade phosphoresces and renders said outline shape viewable to said viewer for a period of time after said lamp is extinguished.
4 more elements
Dependencies are inferred from the claim text.