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Bi Convex Lens
Bi Convex Lens
Bi Convex Lens
Double convex lens has two convex focal length which used for various applications such as magnifying, optics and laser systemsSunday can manufacture double convex lenses with two equal radius or two different convex radius 
 
     Specifications 
 Dia.  N-BK7  
 Diameter Tol.  +0.00/-0.1mm
 Desigh Wavelength  546.10nm
 Design Index  1.5183
 Centration  <3arcmin
 Clear Aperture  >90%
 S/D  40-20 Scratch and dig
 Flatness  1/4lambda at 632.80nm
 Chamfer  0.25mmx45°
 Focal Length Tol.  +/-1%

     Bk7 Standard Double Convex Lens
 No.  EFL(mm)   Dia.(mm) R1=R2(mm)  Material   Tc(mm)  Te(mm)
 SD2A125   20  12.70  20.01  BK7  4.00  2.00
 SD2A125   50  12.70  51.35  BK7  2.79  2.00
 SD2A127  75

 12.70

 77.30  BK7  2.60  2.00
 SD2A120   100  12.70  103.25  BK7  2.40  2.00
 SD2A252  25.4  25.40  24.712  BK7  9.00  2.00
 SD2A255  50.00  25.40  50.92  BK7  5.20  2.00
 SD2A257  75.00  25.40  77.09  BK7  4.11  2.00
 SD2A250  100  25.40  103.04  BK7  3.57  2.00
 SD2A252  200  25.40  207.00  BK7  2.78  2.00
 SD2A25B   250  25.40  258.90  BK7  2.62  2.00
 SD2A25C
 500  25.40  508.30  BK7  2.31  2.00
  
     Manufacture Specifications

 Diameter

 0.5mm to 600mm

 Diameter Tolerance

 +0.00/-0.1 or customer size

 Material

 N-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,etc.

 Surface Quality

 80-50 to 10/5

 Flatness

 1 lambda to 1/10 lambda

 Thickness Tolerance

 +0.00/-0.05mm

 Focal Length Tolerance

 +/-1%

 Clear Aperture

 >90% of diameter

 Centration

 <3arcmin

 Coating

  Single Mag2,  Multiple Layers AR Coating
       A:350-650nm
       B:650-1050nm
       C:1050-1585nm
       D: Customer Design

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