Typically used to reduce spherical aberration, coma and chromatic aberration.
Specifications
Design Wavelength
480.0nm,546.1nm,643.8nm
Diameter Tolerance
+0.0/-0.15mm
Paraxial Focal Length
+/-2%@546.1 nm
Centration
3 arc minutes
Clear Aperture
>80%
Surface Figure
1/4 wave @632.8 nm
Coating
Single layer MgF2 broadband AR coating
Bevel
0.25mmX45 degree
China Optics Net
Negative Achromat Lenses
Product No.
F(mm)
Dia.(mm)
R1(mm)
R2=R3(mm)
R4(mm)
Tc1(mm)
Tc2(mm)
Fb(mm)
LensA Glass
LensB Glass
Add
100095
-25
12.7
-15.60
13.09
44.16
3.00
2.67
-27.5
BK7
F2
100096
-40
12.7
-24.45
17.97
66.60
3.00
2.34
-42.5
BK7
F2
100097
-50
25.4
-31.19
24.89
85.31
3.00
4.22
-53.3
BK7
F2
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