Patent ID: 11921263
Assignee: GENIUS ELECTRONIC OPTICAL CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The optical imaging lens according to claim 1, wherein an effective focal length of said optical imaging lens is EFL, a central thickness of said fourth lens element along the optical axis is CT4, a central thickness of said fifth lens element along the optical axis is CT5, and EFL, CT4, and CT5 satisfy the equation:, E
    ⁢
    F
    ⁢
    L
   
   
    
     C
     ⁢
     T
     ⁢
     4
    
    +
    
     C
     ⁢
     T
     ⁢
     5
    
   
  
  ≤
  
   5.4
   .