Patent Publication Number: US-2016223166-A1

Title: Lamp with a main light source and additional light sources

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application claims priority to U.S. Provisional Patent Application No. 62/110,858, filed Feb. 2, 2015, the contents of which are hereby incorporated herein by reference. 
    
    
     FIELD 
     The present application relates generally to a lamp and, more specifically, to a lamp with a main light source and additional light sources. 
     BACKGROUND 
     An operating room, for instance, at a hospital, a surgery suite or a trauma center, is often nearly dark during an endoscopy procedure. Notably, the endoscopy procedure typically involves video monitor. Lower light power may be seen as beneficial to a team carrying out the endoscopy procedure. For example, lower light power may be seen to lead to decreased eye fatigue when compared to higher light power. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Reference will now be made, by way of example, to the accompanying drawings which show example implementations; and in which: 
         FIG. 1  illustrates an example lamp according to an aspect of the present application; 
         FIG. 2  illustrates a circuit board for use in the lamp of  FIG. 1 ; and 
         FIG. 3  illustrates a surgical lamp assembly having a plurality of lamps of the sort of the lamp of  FIG. 1 , in accordance with an embodiment of the present application. 
     
    
    
     DETAILED DESCRIPTION 
     A lamp with at least one specific operational mode is disclosed herein. An endoscopy mode may be engineered to create an even glow. The even glow may be seen to allow members of a surgical team to easily locate lamp during an endoscopy procedure. Furthermore, the even glow may be seen to provide limited brightness so that team members may more readily locate equipment in an otherwise dark operating room. Subsequent to location, the equipment may be relocated within the operating room. 
     According to an aspect of the present disclosure, there is provided a lamp comprising a housing and a circuit board housed within the housing. The circuit has a plurality of circuit paths, the circuit paths configured to provide electricity to: a main light source, positioned centrally on the circuit board; and a secondary light source, positioned peripherally on the circuit board. 
     Other aspects and features of the present disclosure will become apparent to those of ordinary skill in the art upon review of the following description of specific implementations of the disclosure in conjunction with the accompanying figures. 
     In overview, aspects of the present application relate to a surgical or diagnostic lamp having a specialized endoscopy mode for use in hospitals, surgery suites, trauma centers, etc. 
       FIG. 1  illustrates an example lamp  100  according to an aspect of the present application. The lamp  100  of  FIG. 1  includes a housing  102  and an optic  104 . The housing  102  may be formed of acrylic material. Alternatively, the housing  102  may be formed of plastic. 
       FIG. 2  illustrates a circuit board  200  for use in the lamp  100  of  FIG. 1 . 
     Central to the circuit board  200  is a primary, or “main,” light source  202 . For example, the main light source  202  may be realized as a main Light Emitting Diode (LED)  202 . Close to the periphery of the circuit board  200 , multiple secondary, or “endo,” light sources  204  may be positioned. In the example circuit board  200  of  FIG. 2 , four endo LEDs  204  are positioned at approximately 90 degree intervals around the circular circuit board  200 . The four endo LEDs  204  may be referenced as a first endo LED  204 A, a second endo LED  204 B, a third endo LED  204 C and a fourth endo LED  204 D.A main circuit path (not shown) is used to supply power to the main LED  202 . A first endo circuit path (not shown) is used to supply power to the first endo LED  204 A. A second endo circuit path (not shown) is used to supply power to the second endo LED  204 B. A third endo circuit path (not shown) is used to supply power to the third LED endo  204 C. A fourth endo circuit path (not shown) is used to supply power to the fourth endo LED  204 D. 
     The main circuit path may be designed such that the main LED  202  is not affected by presence of the endo LEDs  204 . Furthermore, each of the individual endo circuit paths may be designed so that each corresponding endo LED  204  is not affected by presence of the other endo LEDs  204 . 
       FIG. 3  illustrates a surgical lamp assembly  300  having a plurality of lamp collections  302 . Mounted on each lamp collection  302  of the plurality of lamp collections  302  is a plurality of lamps  304 . A circuit board may be included, as a component of the lamp collection  302 . Notably, the circuit board of each lamp collection  302  may be designed with circuit paths to individual lamps  304  in a manner that prevents multiple lamps  304  from turning off responsive to damage to a circuit path leading to a particular lamp  304 . 
     In operation, electric current is provided, via the main circuit path, to the main LED  202 . Light from the main LED  202  may then be used for illuminating a patient. More particularly, light from the main LED  202  may then be used for illuminating a very specific portion of the patient. A lens (not shown) may be used to focus the light coming out of the main LED  202  onto the very specific portion of the patient. Indeed, the optic  104  may be used to focus the light coming out of the main LED  202  onto the very specific portion of the patient. The optic  104  may be a total internal refraction optic. 
     Electric current may also be provided, via the endo circuit paths, to the endo LEDs  204 . Light from the endo LEDs  204  may then be used for creating an even glow. More particularly, the housing  102  may be used to bend the light from the endo LEDs  204  to create the even glow. 
     The housing  102  can also be used to align beam from a optic/reflector. For example, a parabolic shape for the housing  102  may be used with a reflective interior surface to reflect light from the main LED  202  to form a resultant beam of light emanating from the lamp  100 . 
     Conveniently, the endo LEDs  204  may be designed so that minimal overhead is added to the overall design of the lamp  100 . Furthermore, it may be shown that the addition of the endo LEDs  204  does not lead to the experience of any additional heat or color distortion from the perspective of the surgical team. 
     The above-described implementations of the present application are intended to be examples only. Alterations, modifications and variations may be effected to the particular implementations by those skilled in the art without departing from the scope of the application, which is defined by the claims appended hereto.