Patent ID: 11933941
Assignee: ALCON INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC G  B  C | IPC B  C  G

Claim 2:
3. The contact lens of claim 1, wherein when Δ(IF)400nm is determined in microindentation tests by using 1 mm hemispherical borosilicate glass probe,, Δ
      ⁡
      
        (
        
          I
          ⁢
          F
        
        )
      
    
    
      400
      ⁢
      nm
    
  
  =
  
    1
    -
    
      
        
          (
          
            I
            ⁢
            F
          
          )
        
        t
      
      
        
          1
          ⁢
          3
          ⁢
          
            .98
            ·
            
              E
              ′
            
          
        
        +
        0.62, in which (IF)t is the measured indentation force at an indentation depth of 400 nm of the contact lens and E′ is the bulk elastic modulus (E′) of the contact lens.