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  Optic gluing setup in the cold room  
 
Optic gluing setup in the cold room
 
  Lens PFS2 prepared for gluing  
 
Lens PFS2 prepared for gluing
 
  High tech spacers: shim stock and tape  
 
High tech spacers: shim stock and tape
 
  1/4 mm thick spacer in place  
 
1/4 mm thick spacer in place
 
  Vacuum removal of bubbles from the RTV  
 
Vacuum removal of bubbles from the RTV
 
  Lenses PFS2 and PFS3A glued, curing  
 
Lenses PFS2 and PFS3A glued, curing
 
  Shectman applying Dow RTV to PFS3B  
 
Shectman applying Dow RTV to PFS3B
 
  Complete assembly: success!  
 
Complete assembly: success!
 
  Prism fractured during AR coating  
 
Prism fractured during AR coating
 
  Prism fracture ground away  
 
Prism fracture ground away