Patent ID: 11892712
Assignee: CARL ZEISS VISION INTERNATIONAL GMBH
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 32:
33. The method as claimed in claim 28, wherein the modification of the design of the progressive power spectacle lens is implemented in view of a minimization of a target function, F
  =
  
    
      ∑
      m
    
    ⁢
    
      
        ∑
        n
      
      ⁢
      
        
          
            W
            n
            m
          
          ⁡
          
            (
            
              
                T
                n
                m
              
              -
              
                A
                n
                m
              
            
            )
          
        
        2
      
    
  

where Wnm represents the weighting of the optical property n at the evaluation point m, Tnm represents the intended value of the optical property n at the evaluation point m, and Anm represents the actual value of the optical property n at the evaluation point m.