Patent Publication Number: US-2011058377-A1

Title: LED illumination device capability of increasing lighting illumination

Description:
FIELD OF THE INVENTION: 
     The present invention relates to an LED illumination device capability of increasing lighting illumination, and in particular to an LED illumination device may reflected light to increase the lighting illumination. 
     DESCRIPTION OF THE RELATED ART: 
     Since light emitting diodes (LEDS) feature the high brightness, power saving and long life expectancy advantages, they have been used extensively for the illumination of lamps. Several LED lamps are usually connected to form an LED lamp set, and the position of each lamp can be adjusted to achieve an illumination effect to meet the requirements for a large projecting area and a high brightness. These LED lamp sets are used as illuminating devices indoors and outdoors. However, it is necessary to plan the LED lamps and the layout of different projecting areas, so as to differentiate the projecting area for each LED lamp with a different distance from the LED lamp and the projecting area, and prevent an uneven brightness of the light projected from the LED lamps onto the projecting areas. Therefore, it is an important subject for manufacturers in the related field to design an LED lamp with good directionality and even brightness, 
     As is generally known in the art, use has been made of varying kinds of illumination lamps for lightening or illuminating objects at night or indoors. Such illumination lamps are supplied with electric energy from a power source and convert the electric energy to light energy, thereby producing a beam of light for illumination. Typical examples of the illumination lamps include a glow lamp and a fluorescent lamp. 
     Widely used in recent years is a Light Emitting Diode (LED) illumination lamp that has a benefit of providing illumination of different colors, although higher in price than the typical lamps referred to above. However, the LED illumination lamp poses a drawback in that it tends to be heated up and shows decreased efficiency when used for more than a predetermined time period. Use of the LED lamp for a prolonged period of time may result in excessive heat generation, thus shortening the life span of the lamp, 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide an LED illumination device capability of increasing lighting illumination, 
     To achieve the above-mentioned object, the present invention includes a heat sink base, an LED illumination module which has a print circuit board and LEDS arranged at the print circuit board, a reflecting board and a transparent board. The LED illumination module is mounted on the heat sink base, The reflecting board has a plurality of holes which correspond to the LEDS of the LED illumination module, so that the LEDS may be exposed through the holes of the reflecting board. And the transparent board is located on the upper surface of the heat sink base to cover the LED illumination module, 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an exploded view of an LED illumination device capability of increasing lighting illumination of the present invention 
         FIG. 2  is a cross-sectional view of assembly drawing of the  FIG. 1 . 
         FIG. 3  is a schematic view of the  FIG. 2 , 
     
    
    
     DETAILED DESCRIPTION OF THE. INVENTION 
     As can be seen in  FIG. 1  and  FIG. 2 , an LED illumination device capability of increasing lighting illumination of the present invention includes a heat sink base  10 , an LED illumination module  12 , a reflecting board  13  and a transparent board  14 . Wherein 
     The heat sink base  10  has an upper surface  16 , which is formed with two flange  20  located at both side of the upper surface  16  to form a cavity  22 , wherein the external sides of the flange  20  are formed with heat sink sheets  24  respectively. Since the both side of the upper surface  17  of the heat sink  10  are formed with slots  25  respectively. 
     The LED illumination module  12 , which includes a printed circuit board  26  and a plurality of LED  28  are located on the print circuit board  22 . 
     The reflecting board  13  is mounted on the upper surface  16  of the heat sink base  10 , and is formed with a plurality of holes  30  correspond to the LEDS  28  of the LED illumination module  20 , so that LEDS  28  may be exposed through the holes  30  of the reflecting board  13 . Further the both side of the reflecting board  13  are formed with bending board  32  toward the transparent board  40 , wherein the bending board  32  of the reflecting board  13  is located on the flange  20  of the heat sink base  10 . And 
     The transparent board  14  is a  -shape, which has a top board  34  and two side board  36  arranged at the both side of the top board  34 , the lower end of the two side board  36  are formed with a guide rail  38  respectively, so that the guide rail  38  of the side boards  36  of the transparent board  14  may be guided within the slots  25  of the heat sink base  10 , so that the transparent board  14  may covered the LED illumination module  12 . 
     Please refer to  FIG. 2 , while the light from the LED illumination module  12  is reflected by the transparent board  14 , the reflected light may be reflected by the reflecting board  13 , therefore the present invention may increases lighting illumination. 
     While the present has been described by way of an example and in terms of a preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment. To the contrary, it is intended to cover various modifications. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modification.