Patent Application
20090073711
1. Field of the Invention
The present invention relates to an illuminating equipment, and more particularly to a lamp shade and a method for forming optical stripes on the surface of the lamp shade.
2. Description of the Related Art
A conventional lamp shade is made of glass or plastic material that allows passage of the light so that an electric bulb provided in the lamp shade can emit light beams outwardly from the lamp shade to provide a lighting function. However, the surface of the lamp shade has a planar structure so that when the light beams are emitted outwardly from the lamp shade or an ambient light is projected onto the surface of the lamp shade, the light will not produce any variation on the surface of the lamp shade even if patterns are printed on the surface of the lamp shade, thereby limiting the outer appearance of the lamp shade.
The present invention is to mitigate and/or obviate the disadvantage of the conventional lamp shade.
The primary objective of the present invention is to provide a lamp shade, wherein the light patterns of the lamp shade will produce variations by provision of the reflective stripes and the recessed gaps of the light reflection structure, thereby enhancing the aesthetic quality of the lamp shade.
Another objective of the present invention is to provide a lamp shade, wherein when an ambient light is projected onto the surfaces of the reflective stripes, the reflected light from the reflective stripes produces different reflective directions and intensities so that when the reflective stripes reflect the ambient light onto an inspector's eyes, the reflective stripes form specific patterns or provide specific viewing effects by distribution of the reflective stripes.
A further objective of the present invention is to provide a lamp shade, wherein the reflective stripes and the recessed gaps of the light reflection structure are formed or provided on the light permeable bottom layer easily, quickly and exactly, thereby facilitating fabrication of the lamp shade, and thereby decreasing the costs of fabrication.
In accordance with one embodiment of the present invention, there is provided a lamp shade, comprising:
a light permeable bottom layer;
a light reflection structure provided on the light permeable bottom layer and including:
a plurality of reflective stripes formed and distributed on a surface of a side of the light permeable bottom layer;
a plurality of recessed gaps formed between the reflective stripes and each located between any two adjacent reflective stripes;
wherein each of the recessed gaps has a depth direction extending into a thickness direction of the light permeable bottom layer. Preferably, the reflective stripes form a pattern.
In accordance with one embodiment of the present invention, there is provided a method for forming reflective stripes on a surface of a lamp shade, comprising:
preparing a bottom layer that is made of light permeable material;
forming a reflective plated layer on a surface of the bottom layer by a plating process;
applying a force to press the plated layer by a cutting tool which has predetermined patterns and stripes to form a plurality of reflective stripes and a plurality of recessed gaps on the plated layer, wherein each of the recessed gaps is located between any two adjacent reflective stripes and has a depth extending into the bottom layer.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
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In practice, when an electric bulb (not shown) provided in the lamp shade 10 emits light beams outwardly from the lamp shade 10, one part of the light beams passes through the light permeable bottom layer 12 and is projected outwardly from the recessed gaps 30 to the ambient environment, and the other part of the light beams contacts with and is reflected backward by the reflective stripes 22 onto the lamp shade 10 to enhance a contrast between the reflective stripes 22 on the surface of the lamp shade 10 and the light beams of the electric bulb, so that patterns formed by the reflective stripes 22 provide an outstanding effect.
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In the preferred embodiment of the present invention, the recessed gaps 30 has a distribution density of about five to eight (5 to 8) pieces per millimeter (mm) width, each of the recessed gaps 30 has a depth of about 0.01 to 0.05 millimeter (mm), and the cutting tool 14 presses the plated layer 13 by rolling or stamping.
Accordingly, the light patterns of the lamp shade 10 will produce variations by provision of the reflective stripes 22 and the recessed gaps 30 of the light reflection structure 20, thereby enhancing the aesthetic quality of the lamp shade 10. In addition, when an ambient light is projected onto the surfaces of the reflective stripes 22, the reflected light from the reflective stripes 22 produces different reflective directions and intensities so that when the reflective stripes 22 reflect the ambient light onto an inspector's eyes, the reflective stripes 22 form specific patterns or provide specific viewing effects by distribution of the reflective stripes 22. Further, the reflective stripes 22 and the recessed gaps 30 of the light reflection structure 20 are formed or provided on the light permeable bottom layer 12 easily, quickly and exactly, thereby facilitating fabrication of the lamp shade 10, and thereby decreasing the costs of fabrication.
Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.
