Although as depicted, {HEAD ~ the interior sidewalls} of cavity body 105 are rectangular in shape as viewed from the top of {TAIL ~ illumination module} 100, other shapes may be contemplated  
Although as depicted , { HEAD ~ the interior sidewalls } of cavity body 105 are rectangular in shape as viewed from the top of { TAIL ~ illumination module } 100 , other shapes may be contemplated
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH