Abstract:
A full circle illumination band comprises an illumination device and a power-supply unit inside a housing, wherein two ends of a light-guiding core meet each other at the housing. In operation, light is emanated from one end of the housing to reach the other end of the same through the light-guiding cord and brighten the entire illumination band.

Description:
FIELD OF THE INVENTION  
         [0001]    This invention relates generally to an illumination neckband, more particularly, it relates to a full circle illumination band that uses only few amount of illumination element with an associated light-guiding cord to enable the incident light emitted from the illumination element to go through one end of the transparent solid cord and fully lighten the entire illumination band so as to show its splendor with lower production cost, and moreover, the light-guiding cord may be cut at will unlike what is limited in the electronic circuit of a conventional hollow cord, namely, “DIY” in length is possible.  
         BACKGROUND OF THE INVENTION  
         [0002]    As illustrated in FIG. 4, in a conventional illumination neckband hitched on a pet, an electric wire D 1  is penetratingly arranged in a transparent flexible tube C and a plurality of lighting elements D (mostly LEDs) is disposed on the wire D 1 . Two ends of the tube C are jointed with a coupling B and a power supply A individually which are in connection with two ends of the wire D 1  respectively, wherein the coupling B is extended to form a flat band B 1  provided with a row of punched holes B 11 . The power supply A is provided internally with a cell pack and electronic components and externally with a plurality of protrusions Al to each thereof a head A 11  with a slightly larger diameter than that of the protrusion body as well as the punched hole B 11  is provided.  
           [0003]    When using the conventional illumination neckband, a pet&#39;s master is supposed to lay the tube C on his pet&#39;s neck firstly, then force the head A 11  to go through the punched hole B 11  in the flat band B 1  such that the head A 11  can be retained in the hole B 11  to prevent the protrusion A 1  from escaping. After power is supplied, the lighting elements D emanate light to have the neckband become brilliant.  
           [0004]    However, there still are some defects found in the conventional illumination neckband as below:  
           [0005]    1. When the neckband is lightened, a plurality of light sources is formed in the tube to show merely the spotlight effect instead of full circle illumination effects and become eyesores to people.  
           [0006]    2. Many lighting elements are required, and the non-standardized customer orders, including different styles, measurements, and circuit specifications, would raise the cost of production.  
           [0007]    3. After the band is fixed at the protrusions, some unfastened portion of the band would expose to the air in an unsightly manner, which may be dragged by the pet itself or a kid to be detached from the protrusions.  
         SUMMARY OF THE INVENTION  
         [0008]    The primary object of this invention is to provide a full circle illumination band, which takes a transparent light-guiding cord as a light transmission medium such that light appears at the other end with a soft and beautiful visual effect.  
           [0009]    Another object of this invention is to provide a full circle illumination band that requires only few amount of light element to have achieved light-transmission purpose so as to reduce cost.  
           [0010]    Yet another object of this invention is to provide a full circle illumination band, which, after connection of two ends of a transparent light-guiding cord, will expose no extra part thereof so as to keep intactness of the band and prevent it from being dragged to get detached by a pet itself or a kid, and moreover, the length of the light-guiding cord could be cut at will in DIY manner.  
           [0011]    In order to realize abovesaid objects, an illumination device and a power-supply unit are disposed in a housing unit of this invention, wherein two ends of a light-guiding core meet each other at the housing. In operation, light is emanated from one end of the housing to reach the other end of the same through the light-guiding cord.  
           [0012]    For more detailed information regarding this invention together with advantages or features thereof, at least an example of preferred embodiment will be elucidated below with reference to the annexed drawings. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0013]    [0013]FIG. 1 is an exploded view in three dimensions showing the main components of this invention.  
         [0014]    [0014]FIG. 2 is a cutaway sectional view showing the structure of this invention.  
         [0015]    [0015]FIG. 3 shows an embodiment of hitching a full circle band of this invention on a pet&#39;s neck.  
         [0016]    [0016]FIG. 4 is a structural view in three dimensions of a conventional illumination neckband. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0017]    As illustrated in FIG. 1, a full circle illumination band of this invention comprises a housing  1 , a cover  2 , and a transparent light-guiding cord  5 .  
         [0018]    The housing  1  is provided with an inner space  10 , wherein one end of the housing  1  is substantially an opening of the inner space  10 , which is communicable with a hole  13  at the other end. A plurality of tapped holes  14  communicable to the hole  13  is formed in a lateral wall of the housing  1 , and an outer thread  11  is arranged in an external wall of the housing  1  surrounding the opening of the inner space  10 . And a power-supply unit comprising an electrically conductive unit  12  attached to the wall of the inner space  10 , the cover  2 , and a plurality of cells  4  disposed in the inner space  10  is arranged in the housing  1 .  
         [0019]    We would refer you this time to FIG. 2. As shown in FIG. 2, an illumination device  16  is disposed on a bottom face of the inner space  10  (adjacent to the hole  13 ), wherein a plurality of lighting elements  162  (LEDs in a preferred embodiment) is disposed on a circuit board  161  of the illumination device  16 . One end of the conductive unit  12  is coupled to a contact of the circuit board  161  while the other end projecting out of the housing  1  is fixed at the opening rim of the inner space  10 .  
         [0020]    The inner wall at one end of the cover  2  is provided with an inner thread  21  (shown in FIG. 2), and the same end is further jointed with an electrically conductive spring  3 , while a cavity  22  is formed at the other end which is communicable with a plurality of tapped holes  23  arranged in the lateral wall of the cover  2 .  
         [0021]    Regarding the transparent light-guiding cord  5 , the solid cord applied in the optical-fiber industry is adopted in a preferred embodiment of this invention.  
         [0022]    When assembling, the procedure starts to: firstly load the cell pack  4  in the inner space  10  of the housing  1  and meanwhile make sure one electrode of the cell pack  4  is in contact with a circuit electrode of the circuit board  161 ; lock the inner thread  21  of the cover  2  to the outer thread  11  of the housing  1  such that the conductive spring  3  can be buried in the inner space  10  and one end of the conductive spring  3  is in contact with the other electrode of the cell pack  4 . In the case the cover  2  has not been locked tightly to the housing  1 , a root portion of the conductive spring  3  will not surely contact with the conductive unit  12  projected out of the housing  1 , and the lighting elements  162  wouldn&#39;t be lightened accordingly for the reason the current does not flow. On the contrary, the root portion of the conductive spring  3  will contact the conductive unit  12  firmly to form a complete current circuit to lighten the lighting elements  162  if the cover  2  is locked tightly to the housing  1 . Besides, this invention may be used to control the ON/OFF operation of a power supply in cooperation with an associated vibration switch.  
         [0023]    The procedure is now to: plug each of the two ends of the transparent light-guiding cord  5  in the hole  13  and the cavity  22  of the housing  1  and the cover  2  respectively; then, lock a screw  15 ,  24  to a tapped hole  14 ,  23  to further pack the light-guiding cord  5  more tightly with the screw tails to ensure that a ring-like connection of the light-guiding cord  5  with the housing  1  and the cover  2  can be secured for hitching on a pet&#39;s neck as shown in FIG. 3. In addition, any proper part of human body, such as elbow, arm, neck, etc, can be hitched with this invention just for fun. Incidentally, an outstanding advantage of this invention is that the transparent light-guiding cord  5  can be extended unlimitedly in production for cost reduction and it can be cut in length as desired.  
         [0024]    In the above described, at least one preferred embodiment has been described in detail with reference to the drawings annexed, and it is apparent that numerous variations or modifications may be made without departing from the true spirit and scope thereof, as set forth in the claims below.