{HEAD ~ A user controlled ornamental panel} or window, which is useful for a number of applications in which the degree or amount of light passing through {TAIL ~ the panel} is to be controlled 
{ HEAD ~ A user controlled ornamental panel } or window , which is useful for a number of applications in which the degree or amount of light passing through { TAIL ~ the panel } is to be controlled
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH