Patent Publication Number: US-2013242552-A1

Title: Led light device for preventing glare

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an LED (Light Emitting Diode) light device, and more particularly to an LED light device including a structure for preventing the glare from being generated and emitted out of the LED light device and for preventing the user from feeling dizzy and for preventing the eyes of the user from being tired or fatigued. 
     2. Description of the Prior Art 
     Typical LED light assemblies or devices comprise a receptacle or housing for attaching or mounting or securing or engaged into a ceiling, and one or more circuit boards disposed or attached or mounted or secured in the housing and including a number of LED light members for generating lights with greatly reduced electric energy and cost. 
     For example, U.S. Pat. No. 7,645,052 to Villard, U.S. Pat. No. 7,690,809 to Tsai et al., U.S. Pat. No. 7,931,517 to Yang et al., and U.S. Pat. No. 7,954,975 to Zhou disclose several of the typical LED light assemblies or devices each also comprising a number of LED light members received or engaged in and attached or mounted or secured in an outer housing for attaching or mounting or securing or engaged into a ceiling, and for generating lights with less electric energy. 
     However, the LED light members are normally exposed and may generate and emit strong lights that the user may feel dizzy and that the eyes of the user may feel tired or fatigued after a short term of using. 
     The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional LED light devices. 
     SUMMARY OF THE INVENTION 
     The primary objective of the present invention is to provide an LED light device including a structure for preventing the glare from being generated and emitted out of the LED light device and for preventing the user from feeling dizzy and for preventing the eyes of the user from being tired or fatigued. 
     In accordance with one aspect of the invention, there is provided an LED light device comprising a housing including a chamber formed therein and defined by a base wall and an outer peripheral wall, a board disposed in the chamber of the housing and attached to the base wall of the housing, a number of LED light members attached to the board, a hood attached to the base wall of the housing and engaged onto the board for covering and shielding the LED light members, and a shade engaged into the chamber of the housing and including two end wall members, and a pair of plates coupled between the end wall members for forming a compartment and for receiving and engaging with the hood, and arranged for allowing the hood to be engaged in the compartment of the shade. 
     The housing includes a pair of anchors attached to the base wall of the housing and disposed on opposite sides of the board for anchoring and retaining the hood to the base wall of the housing. The anchors each include a space formed by a flap for engaging with the hood. 
     The hood includes two opposite side portions each having a catch extended therefrom for engaging with the spaces and the flaps of the anchors and for detachably anchoring and retaining the hood to the housing. 
     The shade includes an opening formed in each of the end wall members for receiving and engaging with end portions of the hood. The hood includes a length shorter than a width of the base wall of the housing for forming two gaps between the end portions of the hood and the outer peripheral wall of the housing. 
     The shade includes a flange extended from each of the end wall members for engaging with the outer peripheral wall of the housing and for covering and blocking the gaps that are formed between the end portions of the hood and the outer peripheral wall of the housing. 
     Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of an LED light device in accordance with the present invention; 
         FIG. 2  is a partial exploded view of the LED light device; 
         FIG. 3  is a partial perspective view of the LED light device, in which a portion of the light device has been cut off or removed for showing the inner structure of the light device; 
         FIGS. 4 ,  5  are cross sectional views of the LED light device, taken along lines  4 - 4 , and  5 - 5  of  FIG. 1  respectively; and 
         FIGS. 6 ,  7  are enlarged partial cross sectional views of the LED light device, illustrating the assembling operation of the LED light device. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to the drawings, and initially to  FIGS. 1-5 , an LED light device in accordance with the present invention comprises an outer receptacle or housing  10  for attaching or mounting or securing or engaged into a ceiling  90  ( FIGS. 4 ,  5 ), and the housing  10  includes a chamber  11  formed therein and formed or defined by a upper or base wall  12  and/or an outer peripheral wall  13 , it is to be noted that the housing  10  is shown up-side-down in  FIGS. 1-3  and  6 - 7 , such that the upper or base wall  12  is shown in the lower or bottom portion of the housing  10  in  FIGS. 1-3 , but shown in the upper portion of the housing  10  in  FIGS. 4 and 5 . 
     One or more circuit boards  20  are disposed or received or engaged in the chamber  11  of the housing  10  and attached or mounted or secured to the base wall  12  of the housing  10  with one or more latches or fasteners  21 , a number of LED light members  22  are attached or mounted or secured to the circuit boards  20  and preferably arranged in series or in lines, and a transformer or battery or power supply device  23  is also attached or mounted or secured to the base wall  12  of the housing  10  and electrically connected or coupled to the LED light members  22  for energizing or actuating the LED light members  22  to generate and emit lights  8  ( FIGS. 4 ,  5 ) with greatly reduced electric energy and cost. 
     The housing  10  further includes one or more pairs of latches or anchors  14  disposed or attached or mounted or arranged on opposite sides of the circuit boards  20 , best shown in  FIGS. 2-4  and  6 - 7  for attaching or mounting or securing or anchoring or retaining one or more shields or hoods  30  to the base wall  12  of the housing  10 , in which one hood  30  is to be provided and attached or mounted or engaged onto each of the circuit boards  20  for covering or shielding the LED light members  22  and/or for filtering the lights  8  and for preventing the glare from being generated and emitted out through the hoods  30  and for preventing the user from feeling dizzy and for preventing the eyes of the user from being tired or fatigued. 
     For example, as best shown in  FIGS. 6-7 , the anchors  14  each include an L-shaped structure having a channel or space  15  formed or defined by an elevated flange or flap  16  which is spaced from or disengaged from and parallel to the base wall  12  of the housing  10 , and the spaces  15  of the anchors  14  are directed or faced toward each other. The hoods  30  each include a substantially C or inverted U-shaped structure having two opposite side portions  31 , and a leg or rim or rib or catch  32  extended radially and outwardly from each of the side portions  31  of the hood  30  for selectively engaging with the spaces  15  of the anchors  14  and for detachably attaching or mounting or securing or anchoring or retaining the hood  30  to the base wall  12  of the housing  10 . 
     It is to be noted that the C or inverted U-shaped structure of the hood  30  allows the side portions  31  of the hood  30  to be easily depressed or moved or forced toward each other ( FIG. 6 ), and thus for allowing the catches  32  of the hood  30  to be easily and quickly and readily moved or disengaged from the anchors  14 , and for allowing the catches  32  of the hood  30  to be easily engaged into the spaces  15  of the anchors  14  ( FIG. 7 ) by the resilience or spring force of the side portions  31  of the hood  30 . It is preferable, but not necessarily that the hood  30  includes two end portions  33 ,  34  ( FIGS. 2 ,  5 ) and includes a length slightly shorter than the width of the base wall  12  of the housing  10  for forming two end spaces or gaps  35  ( FIG. 5 ) between the end portions  33 ,  34  of the hood  30  and the outer peripheral wall  13  of the housing  10 . 
     A shield or shade  50  is to be disposed or engaged into the chamber  11  of the housing  10  and to be attached or mounted or secured to the housing  10  with one or more latches or fasteners (not shown), or welders or adhesive members, and includes two end wall members  51 ,  52 , and one or more pairs of refractive or reflective plates  53  attached or mounted or secured or coupled between the end wall members  51 ,  52  for forming or defining one or more compartments  54  and for receiving or engaging with the hoods  30 , and arranged for allowing the hoods  30  to be disposed or engaged in the compartments  54  of the shade  50  respectively, best shown in  FIG. 4 , and for allowing the lights  8  generated and emitted from the LED light members  22  to be refracted or reflected by the refractive or reflective plates  53 . 
     The end wall members  51 ,  52  each include a flap or rib or flange  55  extended outwardly therefrom ( FIGS. 2 ,  5 ) for engaging with the outer peripheral wall  13  of the housing  10  ( FIG. 5 ) and for covering or shielding or blocking the gaps  35  that are formed between the end portions  33 ,  34  of the hood  30  and the outer peripheral wall  13  of the housing  10 . The shade  50  further include one or more openings  56  formed in each of the end wall members  51 ,  52  thereof for receiving or engaging with the end portions  33 ,  34  of the hood  30  and for solidly and stably anchoring or securing or positioning or retaining the hoods  30  between the housing  10  and the shade  50 . 
     As best shown in  FIG. 5 , a portion of the light  81  generated and emitted from the LED light members  22  may be emitted into the gaps  35  that are formed between the end portions  33 ,  34  of the hood  30  and the outer peripheral wall  13  of the housing  10 , but may be blocked or covered or shielded by the end wall members  51 ,  52  of the shade  50  and/or the flanges  55  of the end wall members  51 ,  52  of the shade  50 , for preventing the light  81  from being generated and emitted out of the shade  50 , and for preventing the user from feeling dizzy and for preventing the eyes of the user from being tired or fatigued by the lights  8 ,  81  generated by the LED light members  22 . 
     Accordingly, the LED light device in accordance with the present invention includes a structure for preventing the glare from being generated and emitted out of the LED light device and for preventing the user from feeling dizzy and for preventing the eyes of the user from being tired or fatigued. 
     Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.