Abstract:
A high intensity light source arrangement, which can prolong the service life span of the high intensity light source arrangement by better dissipating and reducing the heat generated, includes a luminary unit comprising a luminary circuit, at least a terminal electrically connected to the luminary circuit, and at least a luminary element adapted for electrifying with the terminal to emit light; a heat dissipation unit supporting the luminary unit and dissipating heat generated from the luminary unit; and a base housing for supporting the heat dissipation unit thereon including an electric input connector electrically connecting to the luminary unit.

Description:
CROSS REFERENCE OF RELATED APPLICATION  
       [0001]    This is a Divisional Application of a non-provisional application, application Ser. No. 09/882,580, filed Jun. 16, 2001. 
     
    
     
       BACKGROUND OF THE PRESENT INVENTION  
         [0002]    1. Field of Invention  
           [0003]    The present invention relates to a light source arrangement, and more particularly to a high intensity light source arrangement which can enhance brightness of emitting light and increase the cooling effect of the light source arrangement while using low current and voltage.  
           [0004]    2. Description of Related Arts  
           [0005]    Nowadays, the most common light sources are filament lamp bulb for illumination and LED lighting for indication. Due to the remarkable features of low power consumption and instant light emission, LED lighting is specially adapted to be utilized in many electrical appliances as signal and indicating lighting, such as the power on-off signal light and instructional signal light of electric equipment, indicating light of electronic clock, and etc. . . .  
           [0006]    Although the LED has excellent properties of low power consumption and instant light emission, the relatively small light intensity and lighting emission angle of the LED make it not suitable to use for illumination or even apply in some specific area such as traffic light, signboard light, vehicle brake light and signal light, and airport guiding lighting.  
           [0007]    In order to increase the light intensity of the LED, a larger current can be applied to the LED so as to increase the electrical power thereof. However, due to the structure of the LED, when increasing the current, heat generated from the LED will burn the LED.  
           [0008]    In addition, the major drawback of the LED is that the LED cannot produce white light. It is known that white light is composed of red, blue, and green lights. A single LED is capable of producing red, blue, and green lights individually but not the daily used white light.  
           [0009]    In order to produce a white light, an improved LED comprises a blue zinc luminary element and a fluorescent layer powdered on an inner surface of a reflexive cover, wherein when light is produced by the luminary element and reflexed on the fluorescent layer, the white light is produced. However, the fluorescent layer cannot be evenly applied on the inner surface of the reflexive cover so that the white light will not be evenly dispersed from the reflexive cover so as to provide an uneven intensity of the white light.  
         SUMMARY OF THE PRESENT INVENTION  
         [0010]    A main object of the present invention is to provide a high intensity light source arrangement which can prolong the service life span of the high intensity light source arrangement by better dissipating and reducing the heat generated.  
           [0011]    Another object of the present invention is to provide a high intensity light source arrangement which greatly increases the brightness of the light emitted, wherein the light source arrangement is capable of providing a light intensity up to five times or more of a conventional LED.  
           [0012]    Another object of the present invention is to provide a high intensity light source arrangement which comprises a heat dissipation unit directly mounted underneath a circuit board for efficiently dissipating heat therefrom. Therefore, a plurality of luminary elements is capable of electrifying with the terminals on the circuit board.  
           [0013]    Another object of the present invention is to provide a high intensity light source arrangement adapted for producing a white light by selectively arranging the luminary elements of the luminary unit.  
           [0014]    Another object of the present invention is to provide a high intensity light source arrangement adapted for selectively controlling the color of the light from the luminary unit.  
           [0015]    Another object of the present invention is to provide a high intensity light source arrangement wherein a fluorescent layer is evenly coated on an inner surface of a head cover of the high intensity so as to enhance the white light evenly dispersed therefrom.  
           [0016]    Accordingly, in order to accomplish the above objects, the present invention provides a high intensity light source arrangement, comprising:  
           [0017]    a luminary unit comprising a luminary circuit, at least a terminal electrically connected to the luminary circuit, and at least a luminary element adapted for electrifying with the terminal to emit light;  
           [0018]    a heat dissipation unit supporting the luminary unit and dissipating heat generated from the luminary unit; and  
           [0019]    a base housing for supporting the heat dissipation unit thereon comprising an electric input connector electrically connecting to the luminary unit. 
       
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0020]    [0020]FIG. 1 is a perspective view of a high intensity light source arrangement according to a first preferred embodiment of the present invention.  
         [0021]    [0021]FIG. 2 is a partial section view of the high intensity light source arrangement according to the above first preferred embodiment of the present invention.  
         [0022]    [0022]FIG. 3 is a perspective view of an alternative mode of the high intensity light source arrangement according to the above first preferred embodiment of the present invention.  
         [0023]    [0023]FIG. 4 is a partial section view of the alternative mode of the high intensity light source arrangement according to the above first preferred embodiment of the present invention.  
         [0024]    [0024]FIGS. 5A to  5 C illustrate different-circuits of the luminary unit of the high intensity light source arrangement according to the above first preferred embodiment of the present invention.  
         [0025]    [0025]FIGS. 6A to  6 E are circuit diagrams of the luminary unit of the high intensity light source arrangement according to the above first preferred embodiment of the present invention.  
         [0026]    [0026]FIG. 7 illustrates a controlling device incorporated with the high intensity light source arrangement according to the above first preferred embodiment of the present invention.  
         [0027]    [0027]FIG. 8 is a partially sectional view of a high intensity light source arrangement according to a second preferred embodiment of the present invention.  
         [0028]    [0028]FIG. 9 is a partially sectional view of a high intensity light source arrangement according to a third preferred embodiment of the present invention.  
         [0029]    [0029]FIG. 10 is a partially sectional view of a first alternative mode of the high intensity light source arrangement according to the above third preferred embodiment of the present invention.  
         [0030]    [0030]FIG. 11 is a partially sectional side view of a second alternative mode of the high intensity light source arrangement according to the above third preferred embodiment of the present invention.  
         [0031]    [0031]FIG. 12 is a partially sectional view of a high intensity light source arrangement according to a fourth preferred embodiment of the present invention.  
         [0032]    [0032]FIG. 13 is a partially sectional enlarged view of the high intensity light source arrangement according to the above fourth preferred embodiment of the present invention.  
         [0033]    [0033]FIG. 14 is a top view illustrating the four supporting members mounted on the central shaft of the base housing of the high intensity light source arrangement according to the above fourth preferred embodiment of the present invention.  
         [0034]    [0034]FIG. 15 is a circuit diagram of the high intensity light source arrangement according to the above fourth preferred embodiment of the present invention.  
         [0035]    [0035]FIGS. 16A and 16B are circuit diagrams of a circuit film of the high intensity light source arrangement according to the above fourth preferred embodiment of the present invention.  
         [0036]    [0036]FIG. 17 is a partially sectional view of an alternative mode of the high intensity light source arrangement according to the above fourth preferred embodiment of the present invention.  
         [0037]    [0037]FIG. 18 is a partially sectional enlarged view of the alternative mode of the high intensity light source arrangement according to the above fourth preferred embodiment of the present invention.  
         [0038]    [0038]FIG. 19 is a circuit diagram of the alternative mode of the high intensity light source arrangement according to the above fourth preferred embodiment of the present invention.  
         [0039]    [0039]FIG. 20 illustrates an alternative mode of a heat dissipation unit of the high intensity light source arrangement according to the above fourth preferred embodiment of the present invention. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0040]    Referring to FIGS. 1 and 2 of the drawings, a high intensity light source arrangement according to a first preferred embodiment of the present invention is illustrated. The high intensity light source arrangement comprises a luminary unit  10 , a heat dissipation unit  20  and a base housing  40 .  
         [0041]    The luminary unit  10  comprises a luminary circuit  11  which can be a circuit board or a printed circuit film, at least a terminal  12  electrically connected to the luminary circuit  11 , and at least a luminary element  13  adapted for electrifying with the terminal  12  to emit light.  
         [0042]    The heat dissipation unit  20  supports underneath the luminary unit  10  for directly dissipating heat generated from the luminary unit  10 . A transparent head shelter  30  is mounted on the luminary unit  10  in an airtight manner. The base housing  40  which connects to the heat dissipation unit  20  comprises an electric input connector  41  electrically connecting to the luminary unit  10 , as shown in FIG. 2.  
         [0043]    According to the first preferred embodiment, the luminary circuit  11  of the luminary unit  10  is made in ring shape that has a center through hole  111 . Also, the luminary circuit  11  has three or more terminals  12  provided thereon, as shown in FIG. 1.  
         [0044]    The heat dissipation unit  20  comprises a circular ring body  21 , a ceiling wall  22  integrally formed at a top end of the ring body  21  and a circular supporting platform  23  integrally projected from a center position of the ceiling wall  22  of the heat dissipation unit  20 .  
         [0045]    The luminary unit  10  securely sits on the ceiling wall  22  of the heat dissipation unit  20  by fittedly inserting the supporting platform  21  into the center through hole  111  of the luminary circuit  11 , wherein the bottom surface and the inner circumferential side of the luminary unit  10  are well contact with the top surface and the outer circumferential side of the ceiling wall  22  of the heat dissipation unit  20 , so that the heat generated from the luminary unit  10  is capable of directly dissipating from the heat dissipation unit  20  to outside so as to increase the cooling effect of the luminary unit  10 . In other words, the contact area between the luminary circuit  11  and the heat dissipation unit  20  is increased so as to enhance the cooling effect of the heat dissipation unit  20  for dissipating heat for the luminary unit  10 . Moreover, the extended ring body  21  of the heat dissipation unit  20  not only provides a solid connection with the base housing  40  but also substantially increases the heat dissipating area with the outside environment to further increase the heat dissipating effect.  
         [0046]    It is worth to mention that when each of the luminary elements  13  is electrified with the respective terminal  12 , the luminary element  13  not only emits light but also generates heat that may burn off the luminary element  13  itself while the luminary element  13  is overheated. Since the luminary elements  13  are directly supported on the supporting platform  21 , the heat from the luminary elements  13  is capably of directly transferring and dissipating to the heat dissipation unit  20  and better preventing the luminary elements  13  from overheating.  
         [0047]    The head shelter  30  is securely mounted on the heat dissipation unit  20  in an airtight manner wherein the luminary unit  10  is protected by the head shelter  30  for resisting shock and vibration. The head shelter  30  is a semi-spherical shaped transparent body protruded from the luminary unit  10  and the luminary elements  13  are positioned at a center of the head shelter  30  such that the light can evenly distributed to an exterior of the head shelter  30 , wherein the light from the luminary unit  10  is adapted for passing through the head shelter  30  to outside. Accordingly, the head shelter  30  is made by molding a semi-spherical shape of transparent material having high thermo-resistance ability, such as transparent epoxy resin, on the luminary unit  10  and the supporting platform  23  that integrally joins the luminary unit  10 , the heat dissipation unit  20  and the head shelter  30  to form an integral body.  
         [0048]    The base housing  40  is a hollow body that securely supports the heat dissipation unit  20  thereon, wherein connectors  44  are electrically extended from the luminary unit  10  to a pair of electric input connectors  41  provided at a bottom portion of the base housing  40  for electrically connecting the luminary unit  10  with a power supply device.  
         [0049]    As shown in FIG. 1, the high intensity light source arrangement further comprises a guiding means  50  for securely mounting the luminary unit  10  on the heat dissipation unit  20  in position wherein the guiding means  50  comprises a guiding latch  51  which is vertically projected from a side edge of the supporting platform  21  of the heat dissipation unit  20  and arranged to fit into a guiding groove  52  formed on the inner circumferential side of the center through hole  111  of the luminary circuit  11  in such a manner that the luminary elements  13  on the supporting platform  21  are aligned with the terminals  12  respectively for electrified.  
         [0050]    It is worth to mention that each luminary element  13  can produce at least the same amount of light intensity of a conventional LED. Since when a plurality of the luminary elements  13  are gathered together, multiple amount of heat will be generated that may cause a conventional LED structure to burn out. However, since the plurality of the luminary elements  13  are supported on the supporting platform  21  of the heat dissipation unit  20 , the heat from the luminary elements  13  as well as the luminary unit  10  is directly transferred to the heat dissipation unit  20  for preventing the luminary elements  13  and the luminary unit  10  from being overheated. Therefore, the luminary unit  10  of the high intensity light arrangement can multiple the light intensity by providing a plurality of luminary elements  13  without burning off the luminary unit  10 .  
         [0051]    Accordingly, it is possible to have three different kinds of luminary elements  13  attached on the supporting platform  23  of the heat dissipation unit  20  and electrically connected with the three terminals  12  respectively for producing different colors of light such as red, blue, or green.  
         [0052]    According to the first preferred embodiment of the present invention, the three luminary elements  13 , which are made of different materials, are adapted for producing red, green, and blue colors of light respectively, wherein the distance between the three luminary elements  13  is minimized to form a lighting spot  130  so that the red, green, and blue lights produced at the same time form the white light.  
         [0053]    [0053]FIGS. 3 and 4 illustrates an alternative mode of the high intensity light source arrangement according to the above first preferred embodiment of the present invention, wherein the luminary circuit  11 ′ of the luminary unit  10 ′ is a circuit board or a printed circuit film having a circular shape firmly attached to a flat top side the ceiling wall  22 ′ of the heat dissipation unit  20 ′, wherein since the luminary unit  10 ′ is alternatively embodied as a complete circular piece, no supporting platform  23  is provided on the ceiling wall  22 ′ according to this alternative mode.  
         [0054]    The luminary circuit  11 ′ comprises isolating diodes and three luminary elements  13 ′ connected to a center portion of the luminary circuit  11 ′ to electrify with the respective terminals  12 ′ positioned closed to the luminary elements  13 ′. The luminary unit  10 ′ further comprises an auxiliary luminary circuit  14 ′, as shown in FIG. 4, which is firmly attached to a bottom side of the ceiling wall  22 ′ of the heat dissipation unit  20 ′, containing resistors to electrically connect with the luminary circuit  11 ′ by means of conduction rivets  141 ′ which connect the upper luminary circuit  11 ′ with the lower auxiliary luminary circuit  14 ′ through the ceiling wall  22 ′ of the heat dissipation unit  20 ′ via the respective insulation sleeves  142 ′ provided in the ceiling wall  22 ′.  
         [0055]    In other words, for securely mounting the luminary unit  10 ′ on the heat dissipation unit  20 ′, two or more through holes  42 ′ penetrate through the ceiling wall  22 ′ of the heat dissipation unit  20 ′, wherein the insulation sleeves  142 ′ are inserted in the through holes respectively. The conduction rivets  141 ′ penetrate through the insulation sleeves  142 ′ respectively for both physically and electrically connecting the luminary circuit  11 ′ with the auxiliary luminary circuit  14 ′ to the heat dissipation unit  20 ′. Thus, connectors  44 ′ are electrically extended from the conduction rivets  141 ′ so as to electrically connect the luminary unit  10 ′ to the electric input connector  41 ′ of the base housing  40 ′. Similarly, the heat generated from the luminary circuit  11 ′ and the auxiliary luminary circuit  14 ′ will transferred to the heat dissipation unit  20 ′. Like the first preferred embodiment, a semi-spherical transparent head shelter  30 ′ also covers the luminary unit  10 ′ in an airtight manner.  
         [0056]    According to the first preferred embodiments of the present invention, the luminary circuit  11  or the luminary circuit  11 ′ and the auxiliary luminary circuit  14 ′ should be made of good conductive material for conducting heat generated therefrom to the heat dissipation unit  20 ,  20 ′ for heat dissipation without overheating the luminary unit  10 ,  10 ′.  
         [0057]    [0057]FIG. 7 shows an alternative appearance of the high intensity light source arrangement of the present invention, wherein it further comprises a controlling device  60  for selectively controlling a flow of current passing to the luminary unit  10 , as shown in FIG. 7, so as to adjust the light intensity of the luminary unit  10  and select the color of the light of the luminary unit  10 . The controlling device  60 , which is provided on the base housing  40 , comprises a light control switch  61  for adjustably controlling the light intensity of the luminary unit  10  and a color control switch  62  for selecting the color of the light by selecting the red, blue or green luminary element  13  to produce predetermined color of light, such as red, blue or green.  
         [0058]    As shown in FIGS. 5A to  5 C, for controlling the light and color by the controlling means  60  of the present invention, different arrangements of the luminary elements  13 ′ according to the alternative mode of the above first preferred embodiment are illustrated, wherein the luminary elements  13 ′ are electrically arranged in a specific connection on the luminary circuit  11 ′, so as to selectively electrified with the terminals  12 ′ for producing different colors of light and increasing the light intensity of the luminary unit  10 ′.  
         [0059]    According to the above first preferred embodiment and its alternative mode, for producing the white light, at least a set of three luminary elements  13  or  13 ′ which produce red, green, and blue light respectively are connected in a serial connection in such a manner that the luminary elements  13  or  13 ′ are electrified with the terminals  12  or  12 ′ respectively at the same time, as shown in FIG. 6A.  
         [0060]    In order to increase the light intensity of the luminary unit  10 , as shown in FIG. 6B, more than one set of red, blue green luminary elements  13  or  13 ′ are provided and electrically connected in a parallel connection in such a manner that the light intensity of the luminary unit  10  or  10 ′ is capable of selectively controlling by a predetermined current passing through each set of luminary elements  13  or  13 ′.  
         [0061]    As shown in FIGS. 6C through 6E, by selectively arranging the luminary elements  13  or  13 ′ in both serial and parallel connections for adjustably increasing the light intensity of the luminary unit  10  or  10 ′, wherein in each set of luminary elements  13  or  13 ′ which are made of same material, the luminary elements  13  or  13 ′ are connected in the serial connection and adapted for producing a predetermined amount of light intensity. Thus, the predetermined sets of luminary elements  13  or  13 ′ are connected in the parallel connection for increasing the light intensity of the luminary unit  10  or  10 ′ by varying the current passing through the luminary circuit  11  or  11 ′.  
         [0062]    In other words, by connecting the luminary elements  13  or  13 ′ in the serial connection, the luminary unit  10  or  10 ′ can produce a predetermined amount of light intensity when the luminary elements  13  or  13 ′ are made of same material and a white light when the luminary elements  13  or  13 ′ are made of different materials adapted for producing red, green, and blue colors respectively. When the luminary elements  13  or  13 ′ are connected in a parallel connection, the luminary unit  10  or  10 ′ is capable of adjusting the light intensity thereof.  
         [0063]    Alternatively, in order to produce a white light according to the above first preferred embodiment and its alternative mode, a fluorescent layer  131  is evenly coated on an outer surface of the blue light luminary elements  13  or  13 ′, as shown in FIGS. 1 and 2, in such a manner that when the luminary elements  13  are electrified with the terminals  12  to produce the blue light which is then reflexed on the fluorescent layer  131  to form the white light. Accordingly, the fluorescent layer  131  is formed by a predetermined amount of fluorescent powder evenly adhered on the outer surface of the luminary element  13 . Practically, water dissolvable chemical adhesive can be applied to adhere the fluorescent powder on the luminary element  13  or  13 ′. Afterwards, water content in the adhesive can be vaporized by heat so as to integrally adhere the fluorescent powder on the luminary element  13  or  13 ′ permanently.  
         [0064]    Referring to FIG. 8, a second preferred embodiment of the present invention is illustrated, which is another alternative application of the first preferred embodiment, wherein a plurality of luminary units  10  ( 10 ′) are supported around a heat dissipation unit  200  in an evenly distributing manner. According to the second embodiment, the heat dissipation unit  200  has a plurality of mounting through slots  201  spacedly formed around a curved outer surface of the heat dissipation unit  200 , wherein the luminary units  10  ( 10 ′) are fittedly mounted on the mounting through slots  201  of the heat dissipation unit  200  respectively. Each of the luminary units  10  ( 10 ′) is arranged to be protected by the head shelter  30  ( 30 ′) in such a manner that the head shelters  30 ′ are outwardly protruded from the surface of the heat dissipation unit  200 , as shown in FIG. 8. Similarly, a base housing  400  supports the heat dissipation unit  200 , wherein electric input connecters  410  provided at a bottom end of the base housing  400  electrically connect to each of the luminary units  10  for electrically connecting to the power supply device. Moreover, a pair of mounting pins  401  for securely mounting the high intensity light source arrangement like a conventional light bulb to an electric socket shell.  
         [0065]    Like what is shown in FIG. 7, the controlling device  60  can also be installed to the base housing  400  as shown in FIG. 8 for selectively controlling a flow of current passing to the luminary units  10  ( 10 ′) of the second preferred embodiment. Similarly, the light control switch  61  of the controlling device  60  can be used to adjustably control the light intensity of the luminary units  10  ( 10 ′) while the luminary elements  13  ( 13 ′) of each of the luminary units  10  ( 10 ′) are arranged in a parallel connection. The color control switch  62  of the controlling device  60  can be used to selectively produce a predetermined color of the luminary units  10  ( 10 ′) while the luminary elements  13  ( 13 ′) of each of the luminary units  10  ( 10 ′) are arranged in a serial connection. So, the high intensity light source arrangement functions as a conventional light bulb and the high intensity light source arrangement can provide a higher light intensity and color selections while the conventional light bulb cannot.  
         [0066]    Referring to FIG. 9, a third embodiment of the high intensity light source arrangement is illustrated, which is another alternative application of the above first preferred embodiment, wherein the base housing  40 ″ is modified to further comprise a base  43 ″ and a pair of supporting arms  42 ″ upwardly extending from the base  43 ″ for suspending the luminary unit  10 ″ and the heat dissipation unit  20 ″. In order words, the heat dissipation unit  20 ″ is securely supported between two free ends of the supporting arms  42 ″. The luminary unit  10 ″ is arranged to face towards the base  43 ″ in such a manner that the emitted light from the luminary unit  10 ″ is distributing towards the base housing  40 ″.  
         [0067]    It is worth to mention that the high intensity light source arrangement of the third embodiment is capable of incorporating with a vehicle signal light having a concave reflective body, wherein the luminary unit  10 ″ is positioned at a focus point of the concave reflective body in such a manner that the light from the luminary unit  10 ″ can be directly projected on the concave reflective body for maximizing the reflecting light of the concave reflective body of the vehicle light.  
         [0068]    [0068]FIGS. 10 and 11 illustrate a first and second alternative modes of the third embodiment, wherein the luminary unit  10 A,  10 B is adapted for selectively adjusting the lighting position thereof.  
         [0069]    As shown in FIG. 10, the luminary unit  10 A is arranged to face against the base housing  40 A in such a manner that the emitted light from the luminary unit  10 A is distributing against the base housing  40 A. As shown in FIG. 11, the luminary unit  10 B is arranged to face aside in such a manner that the emitted light from the luminary unit  10 B is distributing sidewardly with respect to the high intensity light source arrangement. In other words, the lighting position of the luminary unit  10 A,  10 B,  10 C can be selectively adjusted according to the need of the user.  
         [0070]    Referring to FIGS.  12  to  14 , a fourth preferred embodiment of the high intensity light source arrangement is illustrated, wherein the luminary units A 10  of the fourth embodiment are arranged to emit lights radially so as to enhance the light intensity of the present invention.  
         [0071]    According to the fourth embodiment, the high intensity light source arrangement comprises a base housing A 40 , at least a heat dissipation unit A 20  and at least a luminary unit A 10 . The base housing A 40  further comprises a base A 43  and an elongated central shaft A 45  extended vertically from the base A 43 . There are four heat dissipation units A 20  spacedly mounted on the central shaft A 45  and extended along the central shaft A 45 , wherein the luminary units A 10  are radially supported on the heat dissipation units A 20  respectively.  
         [0072]    The central shaft A 45  is a hollow tubular body made of thermosetting plastic having high thermo-resistance ability that will not be deformed at 150°C. or above. The central shaft A 45 , as shown in FIG. 13, has four upper elongated engaging slots A 451  and four lower elongated engaging slots A 452  radially formed thereon, so as to mount the four heat dissipation units A 20  on the central shaft A 45 . Of course, alternatively, the central shaft A 45  can be formed to have a square, triangular or even polygon cross section and the heat dissipation units A 20  are simply mounted along the side surfaces of the central shaft A 45  respectively.  
         [0073]    The heat dissipation units A 20  are each made of elongated metal strip having good heat conducting ability such as copper. Each of the heat dissipation units A 20  comprises an upper engaging locker A 201  and a lower engaging locker A 22  inwardly protruded from the supporting member A 46  and arranged to engage with the respective upper and lower engaging slots A 451 , A 452  of the central shaft A 45  by inserting therethrough so as to securely mount the heat dissipation unit A 20  on the central shaft A 45 . Each of heat dissipation units A 20  further has at least a circular groove indented thereon to function as a supporting platform A 23 . There are four circular groove type supporting platforms A 23  indented, adjacent to each other, on each of the heat dissipation units A 20 .  
         [0074]    Each of the luminary units A 10  according to the fourth embodiment also comprises a luminary circuit A 11  having at least a terminal A 12  provided thereon, and a luminary element A 13 . The luminary elements A 13  are respectively received in the circular groove type supporting platform A 23  by attaching to the curved bottom surfaces of the supporting platform A 23  respectively in such a manner that the luminary elements A 13  are adapted for aligning on the heat dissipation units A 20  to emit light radially with respect to the base housing A 40 .  
         [0075]    As shown in FIG. 13, two of the luminary circuits A 11  are attached on each of the heat dissipation unit A 20  and positioned above and below of the supporting platforms A 13  respectively, wherein the terminals A 12  provided on the luminary circuits A 11  are electrically electrified with the luminary elements A 13  attached on the supporting platforms A 23  respectively.  
         [0076]    Each of the luminary circuits A 11  is made of printed circuit film which is easier to adhere on the heat dissipation unit A 20 . Each of the luminary circuits A 11  is arranged in a specific arrangement for controlling the luminary elements A 13  in an electrified manner wherein at least an adhesive protecting layer A 111  having high thermo-resistance ability is provided at a rear surface of the luminary circuit A 11  to bond on heat dissipation unit A 11 , as shown in FIGS.  16 A, and  16 B, so as to protect the heat from the luminary element A 13  damaging the luminary circuit A 11 .  
         [0077]    Each of the luminary elements A 13  is a dual-terminal luminary element adapted for dual electrifying with the luminary circuit A 11 , as shown in FIG. 13, wherein the luminary circuit A 11  is designed in a specific arrangement to control the electrification of the dual-terminal luminary element A 13 , as shown in FIG. 15.  
         [0078]    An additional heat dissipation ring A 25  is encirclingly mounted on lower potions of the four heat dissipation units A 20 . Accordingly, by means of the heat dissipation units A 20  are directly contact with all the luminary elements A 13  and the respective luminary circuits A 11 , a plurality of luminary elements A 13  can be gathered together to increase the light intensity of light source arrangement without being burnt off by the heat because the heat generated from the luminary elements A 13  are immediately transferred to the four heat dissipation units A 20  respectively and then further dissipated to the heat dissipation ring A 25 .  
         [0079]    The high intensity light source arrangement of the fourth embodiment also comprises a transparent head shelter A 30  made of transparent material such as epoxy resin having high thermo-resistance ability. The transparent head shelter A 30  has a spherical shape surrounding all the luminary circuits A 11  and all the luminary elements A 13  in an airtight manner, wherein the luminary elements  13  are positioned near to a center of the head shelter A 30  such that the light can evenly distributed to an exterior of the head shelter A 30 . In other words, the supporting platforms A 23  on the heat dissipation units A 20  should be positioned close to the center of the head shelter A 30 . It is worth to mention that the shapes of the indented supporting platforms A 23  and the head shelter A 30  may affect the light reflection of the luminary elements A 13  so as to affect the light intensity of the luminary unit A 10 .  
         [0080]    FIGS.  17  to  19  illustrate an alternative mode of the above fourth embodiment having the same structural design except the luminary element A 13 ′ is a single terminal luminary element instead of the dual terminal luminary element A 13 .  
         [0081]    As shown in FIG. 18, each of the luminary elements A 13 ′ is arranged to be a negative pole and the heat dissipation units A 20 ′ are electrically connected with the terminals A 12 ′ on the respective luminary circuits A 13 ′ in such a manner that the heat dissipation units A 20 ′ can provide both conduction and heat dissipating purposes. Thus, each of the luminary circuits A 11 ′ is designed in a specific arrangement to control the electrification of the single-terminal luminary element A 13 ′, as shown in FIG. 19.  
         [0082]    [0082]FIG. 20 illustrates an alternative mode of the heat dissipation unit A 20 ″, wherein a plurality of heat dissipating fins A 24 ″ are spacedly and radially protruded from the lower portion of the heat dissipation unit A 20 ″ for increasing the heat dissipating area of the heat dissipation unit A 20 ″ so as to enhance the heat dissipating purpose thereof. Preferably, the heat dissipating fins A 24 ′ are integrally extended from the heat dissipation unit A 20 ″ since the heat dissipation unit A 20 ″ itself is a good heat conductor so as to form a one-piece member for easy manufacture.  
         [0083]    It is worth to mention that the high intensity light source arrangement of the fourth embodiment is capable of incorporating with a flashlight having a concave reflective body. Since the luminary unit A 10  emits the light for 360°, the light can be projected on the concave reflective body for maximizing the reflecting light of the concave reflective body of the flashlight. Moreover, the multiple numbers of the luminary units A 10  highly increase the light intensity of the flashlight, which is plural of the conventional light bulb type flashlight. Thus, the high intensity light source arrangement of the present invention is more durable than the conventional one that even though the flashlight is dropped on the floor, the luminary unit is still well protected without damage.