Abstract:
An illumination device for use on magnification headgear that provides for selective magnification of objects. The illumination device comprises detachable perimeter support frame with integrated multiple illumination LED&#39;s thereabout for uniform illumination of an object to be viewed. The support frame extends around the magnifying lenses in the headgear and has a remote source of switchable power.

Description:
This application claims benefit of U.S. Provisional Application No. 60/762,842, filed Jan. 30, 2006. 

   BACKGROUND OF THE INVENTION 
   1. Technical Field 
   This invention relates to illumination devices that are associated with head oriented mounting venues to provide for hands free source of illumination conveniently positioned on the head of the user. 
   2. Description of Prior Art 
   Prior art devices of this type have been directed to a variety of different user applications, such as clip-on LED lights and incandescent lamps for hats or self-supporting head straps. Also glasses may be fitted with LED light sources with built-in batteries. Other prior art illumination constructions can be seen in U.S. Pat. Nos. 5,871,271, 6,483,651, 6,733,105 and U.S. Patent Publication US 2005/006191 in which a hand held magnifying lens is fitted with multiple LED&#39;s for illumination of an object within the field of the magnifier. 
   SUMMARY OF THE INVENTION 
   An illumination device for use with magnifying visors that provides for detailed magnification of an object. The illumination device has a source of power supplied by a remote battery pack and integrated activation switches. A lens surrounding frame of the invention is removably secured to the magnifying visor and is fitted with multiple LED&#39;s so as to provide for overlapping illumination field that corresponds to the effective magnification focal distance of the magnifying device. 

   
     DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a perspective view of the illumination device of the invention with interconnected power pack; 
       FIG. 2  is an exploded front perspective assembly view of the illumination frame and associated LED&#39;s; 
       FIG. 3  is an exploded rear perspective assembly view thereof; and 
       FIG. 4  is a perspective view of a magnifier visor device with the illumination device of the invention attached thereto. 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   Referring to  FIG. 1  of the drawings, an illumination device  10  of the invention can be seen interconnected with a battery pack  11  via a power cable  12 . The battery pack  11  has switch means  12 A for selective power activation of the device. 
   Illumination device  10  has a main support frame  13  defining a rectangular configuration. The support frame  13  has oppositely disposed spaced parallel upper and lower rails  14  and  15  and interconnecting opposing end rails  16  and  17  with a center dividing rail element  18  midway therebetween. 
   A plurality of LED mounting apertures  19  are longitudinally spaced about the perimeter of the frame  13  and in the intersecting center of the dividing element  18 . A corresponding number of LED&#39;s  20  are pressed fit within the respective apertures  19  with their respective positive and negative power leads  20 A and  20 B extending outwardly therefrom. An electrical circuit is formed on a custom circuit board  21  of the same divided rectangular configuration as that of the frame  13 . The circuit board  21 , best seen in  FIG. 3  of the drawings has a conductive surface  22  which is divided by a non-conductive strip at  23  defining positive and negative surface areas  24  and  25  respectively. 
   Pairs of LED lead openings  26  formed within the circuit board  21  for registerable alignment with the respective power leads  20 A and  20 B as will be well understood by those skilled in the art. 
   A pair of interface power communication fittings  27  are formed on the rail frame  16  so as to communicate with the respective positive and negative conductive surfaces  24  and  25  of the circuit board  21  when engaged thereon during assembly as which will be disclosed in greater detail hereinafter. 
   A flexible backing cover plate  28  having an adhesive surface  29  with a release sheet  30  shown in broken lines is of a size and dimension to engage over and to seal the effacing surface of the circuit board  21  when assembled as illustrated in  FIG. 1  of the drawings. 
   Mounting apertures  31 A and  31 B are formed on the frame  13  on the respective rail members  16  and  17  for registerable engagement with fasteners F which would be selectively secured therethrough and onto the lens area  32  on a magnifying visor  33  such as one manufactured by Dongon brand name as seen in  FIG. 4  of the drawings. 
   It will be evident from the above description that by positioning the illumination device  10  of the invention on the magnifier visor  33 , multiple LED&#39;s are so positioned as to form a uniform light field  34  shown by broken lines in  FIG. 4  of the drawings. It will be evident that each of the LED&#39;s  20  illuminate a path LP defining multiple overlapping cones of illumination defining an illumination light field  34  which corresponds to the specific magnification visor&#39;s  33  focal distance which is illustrated in broken lines graphically as FD. 
   Additional power LED activation control switching (not shown) can be provided for independent power isolation and selection of specific LED&#39;s and be mounted within the light visor in certain application processes. 
   It will thus be seen that a new and useful illumination device or magnification visor has been illustrated and described that can be easily retro-fitted onto an existing magnifying visor  33  over the lens portions providing a unique illumination field at the specific focal distance FD of the visor itself thus providing the proper shadow free illumination of the object to be viewed under magnification within the confines of the field. 
   It will also be evident that various modifications of the illumination device of the invention can be made to fit other selected magnifying visor configurations still employing the multiple LED configuration surrounding the mounting frame with a unique integrated circuit board and flexible closure plate which is adhesively secured by removal of the release sheet  30  as will be evident and obvious to one skilled in the art. 
   It will be apparent to those skilled in the art that various changes and modifications may be made thereto without departing from the spirit of the invention.