Patent ID: 11959804
Assignee: SOOCHOW UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The curved-slit imaging spectrometer of claim 4, wherein if a radius of the concave mirror of the Offner-type beam splitting device is R1, a curvature radius of the convex grating is R2, and a radius of the optimum circular field of the Offner-type spectrometer is r, then, r
   =
   
    
     R
     1
    
    ⁢
    
     
      1
      -
      
       -
       
        
         R
         1
         2
        
        
         4
         ⁢
         
          R
          2
          2
         
        
       
      
     
    
   
  
  ,, and
the curved slit is an arc of a radius rs or an approximately arced curve between two arcs of radii r1 and r2, wherein r1=0.8r, r2=1.2r, r1≤rs≤r2.