TABLE I. Constructional data for CENTRAX lens (dimension in mm) 
  
  
  
  
  
  
  
  
  
  
  
Surface Emulsion Back of 
1 2 3 4 
No layer plate 
Curvature „03937 . 20000 -.20000 -.03937 0 0 
Radius 25.40 5.00 -5.00 -25.40 co co 
Int i F d 
n ervening use Glycerol Pused Air Class 
medium silica solution silica 
  
71 sec 0 - 25.4 
Thickness 20.40 10.00 20.40 (where 0 is (6.0) 
field angle) 
  
  
Refractive Index 1.460 1.426 1.460 1.000 1.519 
  
  
  
  
  
  
  
TABLE II. Defocused imaging properties of CENTRAX camera 
  
  
  
  
  
  
  
  
Object Zone radius | Paraxial JAngle of {Wavefront Axicon 
distance responsible focus incidence {aberration Equivalent ring 
and for image error at inner for F number spacing (um) 
direction (mm) (dioptres)| sphere A = 633 nm (A = 633 nm) 
Field 5.85 4.2 55.13? 73.4) F/87 3.84 
centre 
500 o 
Field 5.00 2.2 44.53 27.1) F/70 4.49 
centre 
300 o 
Field 3.64 0.9 30.70 4.9A F/63 6.17 
centre 
eo Ó Tang. 3.94 
20° off : 6.07 5.0 58.36 97.34 F/96 Mean 4.06 
Oras | Rad. 4.19 
500 a Tang. 4.32 
20° off : 5.45 3.0 49.85 44.24 F/80 Mean 4.53 
pet umo Rad 4.67 
300 > Tang. 5.15 
20° off : 4.64 1.7 40.60 16.84 F/71 Mean 5.31 
ODE Rad. 5.48 
  
  
  
  
  
  
  
  
95