Abstract:
A light bar includes two ends separated by a long axis, and at least one LED light source at one or both ends, and no LED light sources along the long axis.

Description:
PRIORITY 
       [0001]    This application claims priority under 35 USC 119 to U.S. patent application Ser. No. 61/096,950 filed on Monday, Sep. 15, 2008, which is presently pending and which is incorporated herein by reference in its entirety. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
       [0002]    In the drawings, the same reference numbers and acronyms identify elements or acts with the same or similar functionality for ease of understanding and convenience. To easily identify the discussion of any particular element or act, the most significant digit or digits in a reference number refer to the figure number in which that element is first introduced. 
         [0003]      FIGS. 1-3  show embodiments of an LED light source with LEDs at two ends of a long axis, and a reflecting surface along a long axis. 
         [0004]      FIG. 4  shows an embodiment of an LED light source with an LED at one end of a long axis, and a reflecting surface along a long axis. 
         [0005]      FIG. 5  shows an embodiment of a long axis with a reflecting surface and a transparent surface. 
         [0006]      FIG. 6  shows an embodiment of an LED light source with LEDs at two ends of a long flexible axis. 
         [0007]      FIG. 7  shows an embodiment of retaining hardware as it relates to the LED source and to the radiator. 
         [0008]      FIG. 8  shows an exploded view of an embodiment of an LED light source that uses a square cross-section long axis. 
         [0009]      FIG. 9  shows an embodiment of retaining hardware  112  as it relates to the LED source and to the radiator. 
         [0010]      FIG. 10  shows an embodiment of a square-cross sectional long axis element. 
         [0011]      FIGS. 11-14  are illustrations of embodiments of a dual light bars. 
     
    
     DETAILED DESCRIPTION  
       [0012]    References to “one embodiment” or “an embodiment” do not necessarily refer to the same embodiment, although they may. 
         [0013]    Unless the context clearly requires otherwise, throughout the description and the claims, the words “comprise,” “comprising,” and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including, but not limited to.” Words using the singular or plural number also include the plural or singular number respectively. Additionally, the words “herein,” “above,” “below” and words of similar import, when used in this application, refer to this application as a whole and not to any particular portions of this application. When the claims use the word “or” in reference to a list of two or more items, that word covers all of the following interpretations of the word: any of the items in the list, all of the items in the list and any combination of the items in the list. 
         [0014]    “Logic” refers to signals and/or information that may be applied to influence the operation of a device. Software, hardware, and firmware are examples of logic. Hardware logic may be embodied in circuits. In general, logic may comprise combinations of software, hardware, and/or firmware. 
         [0015]    Those skilled in the art will appreciate that logic may be distributed throughout one or more devices, and/or may be comprised of combinations of instructions in memory, processing capability, circuits, and so on. Therefore, in the interest of clarity and correctness logic may not always be distinctly illustrated in drawings of devices and systems, although it is inherently present therein. 
         [0016]      FIGS. 1-3  show embodiments of an LED light source with LEDs at two ends of a long axis, and a reflecting surface along a long axis. Embodiments of such an LED lighting apparatus may provide applications such as replacements for fluorescent bar lamps and may have pin heads making them compatible for such applications. 
         [0017]    The long axis  104  separating the ends  102  may be substantially circular, elliptical, square, rectangular, or some other cross-section (see for example  114 ). The long axis may comprise an acrylic stick. The ends  102  may comprise radiators  110  to dissipate heat away from the LED light sources  106  (see also  108 ). The ends  102  may comprise fastening hardware  112  to retain and couple the axis  104 , the LEDs  106 , the radiators  110 , and the pin heads. 
         [0018]      FIG. 4  shows an embodiment of an LED light source with an LED at one end of a long axis, and a reflecting surface along a long axis. Embodiments of such an LED lighting apparatus may provide applications such as replacements for fluorescent bar lamps and may have pin heads making them compatible for such applications. 
         [0019]      FIG. 5  shows an embodiment of a long axis with a reflecting surface  502  and a transparent surface  504 . A similar embodiment may leave off the transparent surface  504 . In other words, the long axis  104  coupling the distal ends  102  maybe a partial enclosure or a full enclosure. The long axis  104  may comprise one or more reflecting surfaces, or one or more diffusers, or a combination of reflectors and diffusers. The long axis  104  may comprise acrylic or some other plastic, glass like materials known in the art for such applications, or other materials. 
         [0020]      FIG. 6  shows an embodiment of an LED light source with LEDs at two ends of a long, flexible axis. The flexibility of the long axis may prove useful in certain situations, such as lighting situations where special shapes are needed. 
         [0021]      FIG. 7  shows an embodiment of retaining hardware  112  as it relates to the LED source  106  and to the radiator  110 . 
         [0022]      FIG. 8  shows an exploded view of an embodiment of an LED light source that uses a square cross-section long axis  104 . 
         [0023]      FIG. 9  shows an embodiment of retaining hardware  112  as it relates to the LED source  106  and to the radiator  110 . 
         [0024]      FIG. 10  shows an embodiment of a square-cross sectional long axis element  104 . 
         [0025]      FIGS. 11-14  are illustrations of embodiments of a dual light bars. Each light bar may be designed and operated in accordance with the principles set for in co-pending U.S. patent application Ser. No. 11/897,243, which is incorporated herein by reference in its entirety.