LASER 
  
  
  
  
  
LASER 
  
  
  
  
Figure 2. Classical Optical Processor 
Lenses L, and L, form a telescope that expands 
the lasel beam fo the desired format size. P, is 
the place of the transparency uhere the Frauen- 
hofer pattern appears. . 
"m 
u N 
  
pes D 
CAMERA 
  
LENS Go E 
Figure 3. Modified Optical Processor 
S is the light source (He-Ne laser, 6328 KR), L, 
is the expanding lense; P is a 100 um diameter 
pinhole; L, is the focussing lens (Vivitar 300mm 
1:5.6); P,^is the signal plane; P, is the Frauen- 
hofer plane; D is the expanded beam diameter at 
L5; d is the P,P, distance and d' the distance 
ffom the output fupil of La to P2»