Patent Publication Number: US-2012043876-A1

Title: Two Confronting Planar LED Lamps with Shades

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     This invention relates to a structure of an LED lamp, and more particularly to a structure of two confronting planar LED lamp with shades comprising a planar LED lighting structure which serves as a lighting source to provide a radiated illumination under the lampshade without forming a shadow area on a shade. 
     2. Description of the Related Art 
     With the environment-protection and energy-saving requirements, LEDs has the advantages of low power consumption, long life and non-pollution, and has become the much needed light source. In order to meet the various applications of the market, planar LED board lighting lamps have been developed to achieve significant progress, such as minimizing the number of chips, increasing brightness, and better cooling housing. To disguise the intense electric light from an incandescent light bulb, lampshades have been used since 19th Century. The employment of the planar LED board on the traditional lamp thereof forms a shadow area on the shades diffused by polarity of the beam pattern. This drawback result in reducing an esthetic and decorative feature and thereby reduce the market value of the LED lighting. 
     SUMMARY OF THE INVENTION 
     The object of the invention is to provide an LED lamp comprising a planar LED lighting structure that resolves the problem of the polarity of the planar LED ray that emits light shadow diffused on the lampshades. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The accomplishment of this and other objects of the invention will become apparent from the following descriptions and its accompanying figures of which: 
         FIG. 1  is a view of a conventional lamp with a single planar LED board with the shade; 
         FIG. 2A  is a view of a planar LED lighting structure according to an embodiment of the present invention; 
         FIG. 2B  is an exploded view of the planar LED lighting structure according to an embodiment of the present invention; and 
         FIG. 3  is a view of an LED lamp including the planar LED structure with a shade according to an embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       FIG. 1  is a view of a conventional single LED lamp with a shade.  FIG. 2  is a view of an embodiment of the present invention comprising two confronting LED boards lighting structure.  FIG. 3  is a view of assembly of two confronting planar LED boards with the lampshade. As illustrated in  FIG. 1 , the conventional single LED lamp  100  comprises a single lighting source, a lamp shade  101 , a lamp body  102 , a lamp base a transformer plug  104  and a switch  5 . The single lighting source  101  is used as a lighting source. A lamp shade  101  is framed to disguise the emission lighting. The lamp body  102  is used to accent the lighting source to a desired height. A lamp base  103  is used to stabilize the lamp body from tilting. An outlet of the transformer plug  104  is used to connect the electricity power. The switch  105  control the lighting in two (on/off) or three (on/off/dimmer) ways. Due to the LED beam pattern, a shadow area, as illustrated by the broken lines in  FIG. 1 , is formed behind of the planar LED board. 
       FIG. 2A  illustrates a planar LED lighting structure according to an embodiment of the present invention. The planar LED lighting structure  106  is mounted onto a top of the lamp body by a screw tubing  114  and positioned under the lamp shade, wherein the planar LED lighting structure  106  comprises two light-emitting areas illustrated by arrows are positioned opposite to each other. 
       FIG. 2B  illustrates an exploded view of the planar LED lighting structure  106 , which comprises at least a pair of thermal releasing caps  107  and  113 , at least a pair of heat sinks  108  and  112 , and at least a pair of aluminum-based circuit boards  109  and  111  respectively installed at a top and a bottom of a concave specular reflector  110  made of a glass or a plastic material. A power connector extends from the pair of circuit boards for connecting to a power source. 
       FIG. 3  illustrates an assembly of an LED lamp of the present invention comprising the planar LED lighting structure  106 , which serves as a lighting source to provide a 360 degree radiated illumination as illustrated by arrows under the lampshade  101 . 
     Many changes and modifications in the above-described embodiments of the invention can, of course, be carried out without departing from the scope thereof. Accordingly, to promote the progress in the useful arts, the invention is disclosed and is intended to be limited only by the scope of the appended claims.