Patent Abstract:
A panorama lamp with 360 degree peripheral illumination with reference to an axis of the lamp is disclosed. Each of the light units mounted on a heat sink has a light chip facing outward from the lamp. Either a protection cap or a circular wall lens can be optionally adopted to cap the top of the lamp. The protection cap provides protection to the chips of the lamp from being damaged. The circular wall lens modifies the beam profile of the lamp to meet various market requests.

Full Description:
BACKGROUND 
     1. Technical Field 
     The present invention relates to a panorama lamp composed of a plurality of light units mounted on a base. The light unit facing outward from the lamp with a direction normal to a longitudinal axis of the lamp. 
     2. Description of Related Art 
       FIG. 1  is a prior art, U.S. Pat. No. 6,220,722 disclosed a traditional LED lamp  100 . The LED lamp  100  comprises a gear column  1 , a metal lamp base  2 , a cube metal substrate  3  with light emitted diode (LED)  4 , an envelope  5 , outlet holes  6  and inlet holes  7  for an air flow generated by forced air cooling. The metal substrate  3  is cube-shaped with six flat faces, and is connected to gear column  1  via a vertex of the cube. The metal substrate  3  is made of a metal or a metal alloy, thereby enabling good heat conduction from the LED  4  to the gear column  1  to be achieved. Each face of the pyramid is provided with a number of (eight or nine) LED  4  which is secured to the face by means of a heat-conducting adhesive. 
     The defect of the prior art is that the metal substrate  3  is a common block heat sink which has a relatively low efficiency in heat dissipation due to the bulky body and relatively smaller surface area left for heat dissipation. A higher heat dissipation LED lamp need to be conceived. Higher dissipation efficiency means a more light intensity for a LED lamp can be obtained. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a prior art. 
         FIGS. 2A˜2D  is a first light unit of the present invention. 
         FIGS. 3A˜3D  is a second light unit of the present invention. 
         FIGS. 4A˜4B  is components for a first lamp according to the present invention. 
         FIG. 5  is a first lamp assembled according to  FIGS. 4A˜4B   
         FIGS. 6A˜6D  is a third light unit of the present invention. 
         FIGS. 7A˜7B  is components for a second lamp according to the present invention. 
         FIG. 8  is a second lamp assembled according to  FIGS. 7A˜7B   
         FIG. 9  is a beam profile for the lamp of  FIG. 5  or  FIG. 8   
         FIG. 10  is a circular wall protection cap used for the lamp according to the present invention. 
         FIG. 11  is another circular wall protection cap used for the lamp according to the present invention. 
         FIG. 12  is a first cap lens used for the lamp according to the present invention. 
         FIG. 13  is a second cap lens used for the lamp according to the present invention. 
         FIG. 14  is a third cap lens used for the lamp according to the present invention. 
         FIG. 15  is a detailed beam direction for the cap lens of  FIG. 14   
         FIG. 16  is a fourth cap lens used for the lamp according to the present invention. 
         FIG. 17  is a fifth cap lens used for the lamp according to the present invention. 
         FIG. 18  is a sixth cap lens used for the lamp according to the present invention. 
         FIG. 19  is a seventh cap lens used for the lamp according to the present invention. 
         FIG. 20  is an eighth cap lens used for the lamp according to the present invention. 
         FIG. 21A˜21B  is a ninth cap lens used for the lamp according to the present invention. 
         FIG. 22A˜22B  is a tenth cap lens used for the lamp according to the present invention. 
         FIG. 23A˜23B  is an eleventh cap lens used for the lamp according to the present invention. 
         FIG. 24  is an outer protection used for the lamp according to the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     This invention discloses a plurality of striped metal-insulation-metal (MIM) lead, bearing one or more LED to form a light unit, mounted onto an inner surface of a tube substrate with light emitted outward to form a high efficiency heat dissipation LED lamp. The LED straddles a gap between two coplanar contacts of the MIM lead. The MIM lead provides more surfaces area for heat dissipation and therefore displays a better heat dissipation for the lamp; an LED lamp with a higher light intensity can be obtained. 
       FIGS. 2A˜2D  is a first light unit of the present invention. 
       FIG. 2A  shows pieces of a light unit  200 A being prepared, including a light chip  25 , a first metal  21  having a first tab  271 , an insulation layer  24 , a second metal  22 , a third metal  23  having a second tab  272 , and a bridging metal  222 A connecting the second metal  22  with the third metal  23 . 
       FIG. 2B  shows a combination of the pieces of  FIG. 2A . 
       FIG. 2B  shows a light unit  200 A is assembled, where the second metal  22  has a left surface coplanar with a left surface of the first metal  21 ; a gap G is formed between the first metal  21  and the second metal  22 ; the third metal  23  is configured right side to and parallel with the first metal  21 ; the insulation layer  24  is configured in between the first metal  21  and the third metal  23 . The light chip  25  straddles the gap G and has a first bottom electrode (not shown) coupled to the first metal  21 , and has a second bottom electrode (not shown) coupled to the second metal  22 . The bridging metal  222 A connects a bottom end of the second metal  22  to a top end of the third metal  23 . A connection of the bridging metal  222 A and the third metal  23  forms an L-shaped turn. In the embodiment, a connection of the second metal, the bridging metal and the third metal forms an N-shaped turn. 
       FIG. 2C  is a front view of the light unit  200 A of  FIG. 2B . 
       FIG. 2C  shows that the second metal  22  is on the top, and the first metal  21  is on the bottom, the light chip  25  straddles the gap G in between the second metal  22  and the first metal  21 . The first metal  21  has a left tab  271  extending from a fringe of the first metal  21 ; and the third metal  23  has a right tab  272  extending from a fringe of the third metal  23 . The second tab  272  has an elevation similar to an elevation of the first tab  271 , so that the first tab  271  is being able to electrically contact the second tab  272  of a neighboring second unit  200 A. 
       FIG. 2D  shows two light units in serial connection 
       FIG. 2D  shows that two light units are configured side by side, the left light unit  200 AL has a right tab  272  contacting with a left tab  271  of the right light unit  200 AR for an electrical connection in serial. 
       FIGS. 3A˜3D  is a second light unit of the present invention. 
       FIG. 3A  shows pieces of a second light unit  200 B being prepared, including a light chip  25 , a first metal  21  having a first tab  271 , an insulation layer  24 , a second metal  22 , a third metal  23  having a second tab  272 , and a bridging metal  222 B. The difference between the light unit  200 B and  200 A is that the bridging metal in different location. The bridging metal  222 A is relatively in a lower position and the bridging metal  222 B is relatively in an upper position. 
       FIG. 3B  shows a combination of the pieces of  FIG. 3A . 
       FIG. 3B  shows that a light unit  200 B is assembled, where the second metal  22  has a left surface coplanar with a left surface of the first metal  21 ; a gap G is formed between the first metal  21  and the second metal  22 ; the third metal  23  is configured right side to and parallel with the first metal  21 ; the insulation layer  24  is configured in between the first metal  21  and the third metal  23 . The light chip  25  straddles the gap G and has a first bottom electrode (not shown) coupled to the first metal  21 , and has a second bottom electrode (not shown) coupled to the second metal  22 . The bridging metal  222 B connects a top end of the second metal  22  to a top end of the third metal  23 . A connection of the bridging metal  222 B and the third metal  23  forms an L-shaped turn. 
       FIG. 3C  is a front view of the light unit  200 B of  FIG. 3B . 
       FIG. 3C  shows that the second metal  22  is on the top, and the first metal  21  is on the bottom, the light chip  25  straddles the gap G in between the second metal  22  and the first metal  21 . The first metal  21  has a left tab  271  extending from a fringe of the first metal  21 ; and the third metal  23  has a right tab  272  extending from a fringe of the third metal  23 . The second tab  272  has an elevation similar to an elevation of the first tab  271 , so that the first tab  271  is being able to electrically touch the second tab  272  of a neighboring second unit  200 B. 
       FIG. 3D  shows two light units in serial connection 
       FIG. 3D  shows that two light units are configured side by side, the left light unit  200 BL has a right tab  272  contacting with a left tab  271  of the right light unit  200 BR for an electrical connection in serial. 
       FIGS. 4A˜4B  is components for a first lamp according to the present invention. 
       FIG. 4A  shows a plurality of light unit  200 B as an example, where each light unit  200 B can be replaced by light unit  200 A, prepared for a panorama lamp  31 .  FIG. 4B  shows a base  300  prepared, which has a tube substrate  30  on the top. The tube substrate  30  has a circular wall  31  which has an inner wall surface  311 . 
       FIG. 5  is a first lamp assembled according to  FIGS. 4A˜4B . 
       FIG. 5  shows a panorama lamp  500  assembled with the pieces of  FIGS. 4A˜4B . The light units  200 B are each attached onto the inner wall surface  311  of the circular wall  31  with light chip  25  facing outward, with reference to a longitudinal axis Ax of the tube substrate  30 , to form a panorama lamp  500 . 
       FIGS. 6A˜6D  is a third light unit of the present invention. 
       FIG. 6A  shows pieces of a third light unit  200 C being prepared, including a light chip  25 , a first metal  41  having a first tab  471 , an insulation layer  44 , a second metal  42 , a third metal  43  having a second tab  472 , and a bridging metal  422 . The bridging metal  422  is a belly-shaped metal which is bendable. 
       FIG. 6B  shows a light unit assembled with the pieces of  FIG. 6A   
       FIG. 6B  shows a light unit  200 C is assembled, where the second metal  42  has a left surface coplanar with a left surface of the first metal  41 ; a gap G is formed between the first metal  41  and the second metal  42 ; the third metal  43  is configured right side to and parallel with the first metal  41  through bending the bridging metal  422  in 180 degree downward (see the arrow of  FIG. 6A ); the insulation layer  44  is sandwiched in between the first metal  41  and the third metal  43 . The light chip  25  straddles the gap G and has a first bottom electrode (not shown) coupled to the first metal  41 , and has a second bottom electrode (not shown) coupled to the second metal  42 . The belly-shaped bridging metal  422  connects a top end of the second metal  42  to a top end of the third metal  43 . 
       FIG. 6C  is a front view of the light unit  200 C of  FIG. 6B . 
       FIG. 6C  shows that the second metal  42  is on the top, and the first metal  41  is on the bottom, the light chip  25  straddles the gap G in between the second metal  42  and the first metal  41 . The first metal  41  has a left tab  471  extending from a fringe of the first metal; and the third metal  43  has a right tab  472  extending from a fringe of the third metal. The second tab  472  has an elevation similar to an elevation of the first tab  471 , so that the first tab  471  is being able to electrically contact the second tab  472  of a neighboring second unit  200 C. 
       FIG. 6D  shows two light units in serial connection 
       FIG. 6D  shows that two light units are configured side by side, the left light unit  200 CL has a right tab  472  contacting with a left tab  471  of the right light unit  200 CR for an electrical connection in serial. 
       FIGS. 7A˜7B  is components for a second lamp according to the present invention. 
       FIG. 7A  shows a plurality of light unit  200 C as an example, where light units  200 C can be replaced by either light unit  200 A or light unit  200 B, prepared for a panorama lamp  800 .  FIG. 7B  shows that a base  300  is prepared, which has a tube substrate  30  on the top. The tube substrate  30  has a circular wall  31  which has an inner wall surface  311 . 
       FIG. 8  is a second lamp assembled according to  FIGS. 7A˜7B   
       FIG. 8  shows a panorama lamp  800  assembled with the pieces of  FIGS. 7A˜7B . The light units  200 C are each attached onto the inner wall surface  311  of the circular wall  31  with light chip  25  facing outward, with reference to a longitudinal axis Ax of the tube substrate  30 , to form a panorama lamp  800 . 
       FIG. 9  is a beam profile for the lamp of  FIG. 5  or  FIG. 8 . 
       FIG. 9  shows a beam profile  52  of the lamp  500  of  FIG. 5  or the lamp  800  of  FIG. 8 . 
       FIG. 10  is a protection cap used for the lamp according to the present invention. 
       FIG. 10  shows that a transparent circular wall protection cap  51  is optionally mounted on a top of the lamp  800 . The cap  51  has a transparent top plate and has a circular wall  51 C configured on the bottom. The circular wall  51 C is configured in front of the light chips  25  for a protection to the chips  25 . The lamp  800  develops a beam profile  52 . 
       FIG. 11  is another circular wall protection cap used for the lamp according to the present invention. 
       FIG. 11  shows that the cap  512  has transparent top plate and a circular wall  512 C. The circular wall  512 C is tapered out and configured in front of the light chips  25  as a protection to the chips  25 . The lamp  800  develops a beam profile  522 . 
       FIG. 12  is a first cap lens used for the lamp according to the present invention. 
       FIG. 12  shows that a circular wall cap lens  513  has a transparent top plate and a circular wall lens  513 C. The circular wall lens  513 C, configured in front of the light chips  25 , functions as a plano-convex lens with respective to each light chip  25 . The wall lens  513 C modifies the light emission of the light chips  25  to develop a beam profile  523 . 
       FIG. 13  is a second cap lens used for the lamp according to the present invention. 
       FIG. 13  shows that the circular wall cap lens  513 X has been roughed on an outer surface of its wall lens  513 XC to form a roughed surface RF in order to give a different modification effect to the light emission. The wall lens  513 XC modifies the light emission of the light chips  25  to develop a beam profile  523 X. 
       FIG. 14  is a third cap lens used for the lamp according to the present invention. 
       FIG. 14  shows that the circular wall cap lens  513 E has reflective particles  515  mixed inside the wall lens  513 EC to give a different modification effect to the light emission. The wall lens  513 EC modifies the light emission of the light chips  25  to develop a beam profile  523 E. 
       FIG. 15  is a detailed beam direction for the cap lens of  FIG. 14 . 
       FIG. 15  shows the beam profile  523 E develops some light emission on top of the lens  513 E. 
       FIG. 16  is a fourth cap lens used for the lamp according to the present invention. 
       FIG. 16  shows that a cap lens  513 F is used. The lens  513 F is a modified version to the lens  513 E. The wall lens  513 FC is a plano-convex lens, with an inner surface tapered out and the convex surface is therefore deviated. With the deviation of the wall lens  513 FC, beam profile  523 F deviates inward a longitudinal axis of the cap lens  513 F. 
       FIG. 17  is a fifth cap lens used for the lamp according to the present invention. 
       FIG. 17  shows that the circular wall cap lens  513 G has been roughed on an outer surface of its wall lens  513 GC to form a roughed outer surface RF in order to give a different modification effect to the light emission. The wall lens  513 GC modifies the light emission of the light chips  25  to develop a beam profile  523 G. 
       FIG. 18  is a sixth cap lens used for the lamp according to the present invention. 
       FIG. 18  shows that the circular wall cap lens  513 H has reflective particles  515  mixed inside the wall lens  513 HC to give a different modification effect to the light emission. The wall lens  513 HC modifies the light emission of the light chips  25  to develop a beam profile  523 H. 
       FIG. 19  is a seventh cap lens used for the lamp according to the present invention. 
       FIG. 19  shows that the cap lens  513 I has a circular wall  513 IC configured in front of the light chips  25 . The circular wall lens  513 IC is a plano-concave lens with respective to each light chip  25 . The wall lens  513 IC modifies the light emission of the light chips  25  to develop a beam profile  523 I. 
       FIG. 20  is an eighth cap lens used for the lamp according to the present invention. 
       FIG. 20  shows that the wall lens  513 JC is used, which is a modified version to the wall lens  513 JC. The outer top of the wall lens  513 JC is upward tapered in. The wall lens  513 JC modifies the light emission of the light chips  25  to develop a beam profile  523 J. 
       FIG. 21A  is a ninth cap lens used for the lamp according to the present invention. 
       FIG. 21  shows that a cap lens  513 K is used. The cap lens  513 K has a circular wall lens  513 KC which includes a flat inner surface tapered out, a cut VK configured in the middle latitude of an outer surface of the wall lens  513 KC, an outer upper surface ST 1  tapered in towards the cut VK from top, and an outer lower surface ST 2  tapered in towards the cut VK from bottom.  FIG. 21B  shows a beam profile developed by the cap lens of  FIG. 21A .  FIG. 21B  shows the beam profile  523 K developed by the wall lens  513 KC. 
       FIG. 22A  is a tenth cap lens used for the lamp according to the present invention. 
       FIG. 22A  shows that a cap lens  513 L is used. The cap lens  513 L has a circular wall lens  513 LC which includes a flat inner surface tapered out, an upper cut VK 1  configured in the middle-up of an outer surface of the wall lens  513 LC, a lower cut VK 2  configured in the middle-down of an outer surface of the wall lens  513 LC.  FIG. 22B  shows the beam profile  523 L developed by the wall lens  513 LC. 
       FIG. 23A  is an eleventh cap lens used for the lamp according to the present invention. 
       FIG. 23A  shows that a cap lens  513 M is used. The cap lens  513 M has a circular wall lens  513 MC. The wall lens  513 MC has an inner surface tapered out in a first slope, and an outer surface tapered out in a second slope smaller than the first slope. A flange  551  is configured on a top of the wall lens  513 MC, the flange  551  has an outer diameter larger than an outer diameter of the wall lens  513 MC.  FIG. 23B  shows the beam profile  523 M developed by the wall lens  513 MC. 
       FIG. 24  is an outer protection used for the lamp according to the present invention. 
     An oval protection  555  is optionally mounted on a pan base  32  of the lamp of  21 A/ 21 B, which makes the lamp  900  similar to a traditional lamp profile. 
     While several embodiments have been described by way of example, it will be apparent to those skilled in the art that various modifications may be configured without departing from the spirit of the present invention. Such modifications are all within the scope of the present invention, as defined by the appended claims.

Technology Classification (CPC): 5