Illumination – Plural light sources – Diverse light generators
Reexamination Certificate
2000-06-22
2001-06-26
Quach, Y. (Department: 2875)
Illumination
Plural light sources
Diverse light generators
C362S084000, C362S253000
Reexamination Certificate
active
06250773
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a novel night lamp structure, and in particular, to a night lamp configured integrally in a semi-cylindrical structure such that it has a novel and unique style and gives users an unusual visual effect.
2. Description of the Prior Art
As us known, a night lamp is used at a dark site in the house such as, the bedroom, passageways, or staircases to lighten and prevent the user from accidents when he passes these places. However, since a conventional night lamp employs generally a tungsten filament as the light source that consumes great electric power and has short life-time, as well as can generate high heat during emitting light, the user might be in a risk of being hurt once he touches the lamp carelessly. Further, when something covers the conventional lamp bulb, it may be affected by the high heat generated therefrom and undergoes insidious burning that may result into a fire. Therefore, lightening with a tungsten filament lamp is a way that is not safe enough but also is uneconomical due to the above-mentioned consumption of great electricity that increases correspondingly the cost required.
Accordingly, the prior art has many disadvantages that need further improvement. In view of solving these disadvantages associated with the prior art night lamp and attempting to improve it, the inventor has devoted in an intensive study for many years and found finally the novel night lamp of the present invention.
SUMMARY OF THE INVENTION
One object of the invention is to provide a night lamp having a semi-cylinder structure, wherein the internal luminescent sheet has a corresponding curve shape that gives the lamp an unique and novel integral configuration and increases the added-value thereof.
Another object of the invention is to provide a night lamp using a luminescent sheet as its light source that makes it being a safe, power-saving, long service life and environment protecting night lamp.
The novel night lamp having above-mentioned advantages according to the invention comprises a night lamp body, an upper shade, a luminescent sheet, a light-diffusing sheet and a positioning set; wherein, said upper shade has a semi-circular arc shape and has an open portion. Said open portion has a snap protrusion provided on its inner surface. Whereby said luminescent sheet can be positioned and protrude in said open portion of said upper shade. Accordingly, said luminescent sheet can be affected by said circular arc of said upper shade and form a corresponding semi-circular arc plane. Said light-diffusing sheet is used to cover said luminescent sheet and acts as an insulator against a power supply. A protruding block in a form of semi-circular arc is provided on said night lamp body. Snap engaging recesses are provided along both lateral sides of said protruding block for snap engaging with said snap protrusions on the upper shade. Further, a positioning seat is provided on one end of said protruding block. Two shaft levers are provided vertically about the central portion of said positioning seat. Two conductive copper pieces are slipped on said two shaft levers respectively and penetrate through slots on said positioning seat to protrude at the back of said night lamp body for forming a socket and meanwhile, fixing said positioning set on said positioning seat in a manner that said two shaft levers on said positioning seat can penetrate into hollow cylinders extending upwardly on the top surface of said positioning set. Top ends of said hollow cylinders are shaped into inclined openings such that, as the two conductive springs are slipped on said two shaft levers, they can protrude out of said hollow cylinder. With this configuration, as said semi-circular arc-like upper shade covers said night lamp body, the entire night lamp will be present as a semi-cylindrical body, and said conductive springs protruding out of said hollow cylinder will contact said conductive ends on said luminescent sheet. As a result, an electric power can be conducted via said conductive copper pieces and said conductive springs to said luminescent sheet and activates said luminescent sheet to luminescence.
REFERENCES:
patent: 5622424 (1997-04-01), Brady
patent: 5662408 (1997-09-01), Marischen
Bacon & Thomas PLLC
Quach Y.
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