Patent Publication Number: US-2011058374-A1

Title: LED illumination device capability of regulating angle of illumination

Description:
FIELD OF THE INVENTION 
     The present invention relates to an LED illumination device capability of regulating angle of illumination, and in particular to an LED illumination device may be regulated illumination angle quickly. 
     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. 
     Please referring to  FIG. 1 , a conventional day light includes a base  10 , two inclined surfaces  11  located on the base  10 , two electrically connected head  12  arranged at the both side of the base  10  and two light tube  13  arranged at the inclined surface  11  of the base  10  respectively, so that it may regulated angle of illumination. 
     SUMMARY OF INVENTION 
     An object of the present invention is to provide an LED illumination device capable of regulating angle of illumination. 
     To achieve the above-mentioned object, the present invention includes a regulating unit and an LED illumination. The regulating unit has a fixed portion, a connection portion and a bend portion connected between the fixed portion and the connection portion. The LED illumination lamp is mounted on the connected portion of the regulating unit, then, the connection portion may regulated an angle relative to the fixed portion of the regulating unit by bending the bent portion of the regulating unit. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is an exposed view of conventional day light. 
         FIG. 2  is a scheduled of first preferred embodiment of present invention 
         FIG. 3  is a cross-sectional view of first preferred embodiment of the present invention. 
         FIG. 4  is a scheduled of second preferred embodiment of present invention 
         FIG. 5  is a cross-sectional view of second preferred embodiment of the present invention, 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Referring to  FIG. 2  and  FIG. 3 , an LED illumination device capability of regulating angle of illumination includes a regulating unit  20  mounted at a wall  40  and an LED illumination lamp  30 . Wherein
         The regulating unit  20  has a metal sheet, which is formed with a fixed portion  21  fixed on the wall  40 , a connection portion  23  and a bend portion  22  connected between the fixed portion  21  and the connection portion  23 . In the embodiment, the fixed portion  21  of the regulating unit  20  is formed with a first fixed hole  24 , so that the fixed portion  21  may be fixed at the wall  40  via a first fixed element  25  inserted into the first fixed hole  24 . The connection portion  23  of the regulating unit  20  is formed with second fixed hole  26 . And   LED illumination lamp  30  is mounted on the connected portion  23  of the regulating unit  20  via second fixed element  27  insert into the second fixed hole  26  of the connection portion  23 , then, the connection portion  23  may be regulated an angle relative to the fixed portion  21  of the regulating unit  20  by bending the bent portion  22  of the regulating unit.       

     Therefore, the LED illumination lamp  30  may be regulated illumination angle by bending the bend portion  22  of the regulating unit  20 . 
     Referring to  FIG. 4  and  FIG. 5 , the second preferred embodiment of the present invention includes a regulating unit  20  mounted at a wall  40  and two LED illumination lamp  30 . Wherein
         The regulating unit  20  has a metal sheet, which is formed with a fixed portion  21  fixed on the wall  40 , two connection portion  23  and two bend portion  22  connected between the fixed portion  21  and the connection portion  23 .   The two LED illumination lamp  30  is mounted on the two connected portion  23  of the regulating unit  20 , then, the connection portion  23  may be regulated an angle relative to the fixed portion  21  of the regulating unit  20  by bending the bent portion  22  of the regulating unit.   Therefore, the two LED illumination lamps  30  may be regulated illumination angle by bending the two bend portion  22  of the regulating unit  20 .   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.