Infrared radiation detector
FIG. 1 is a front elevational view of an infrared radiation detector showing our new design; 
     FIG. 2 is a side elevational view thereof, the opposite side being identical except for the nut on the end of the bolt in the bracket; 
     FIG. 3 is a top plan view thereof, the bottom being a mirror image; 
     FIG. 4 is a top, front isometric view thereof.