Achromatic Lens

Achromatic Lens


Achromatic lens has considerably reduced values of spherical aberration. Chromatic aberrations. Best used to replace single components where performance must be improved.

Common Specification
Material Crown Glass and Flint Glass
Dimension Tolerance +0.0/-0.1 mm
Thickness Tolerance  ± 0.1 mm
Paraxial Focal Length ± 2%
Clear Aperture > 90%
Centration 3 arc minutes
Irregularity lambda/4 at 632.8 nm 
Surface Quality S/D 60-40
Bevel 0.2mmx45°
Coating According to the requirement
Part Number ф
(mm)
f
(mm)
R1
(mm)
R2=R3
(mm)
R4
(mm)
Tc1
(mm)
Tc2
(mm)
fb
(mm)
Lens A Lens B
ACH-BK7-SF5-D6.0-F15 6 15 8.831 -6.546 -19.77 2.71 1 13.066 BK7 SF5
ACH-BK7-SF5-D6.0-F20 6 20 12.356 -8.511 -24.38 2.6 1 18.288 BK7 SF5
ACH-BK7-SF5-D6.0-F25 6 25 15.704 -10.666 -29.99 2.3 1 23.455 BK7 SF5
ACH-BK7-SF5-D6.0-F30 6 30 18.88 -12.942 -36.48 1.9 1 28.695 BK7 SF5
ACH-BK7-SF5-D8.0-F25 8 25 15.596 -10.814 -30.48 2.9 1 23.125 BK7 SF5
ACH-BK7-SF5-D8.0-F30 8 30 18.88 -12.882 -36.22 2.7 1 28.277 BK7 SF5
ACH-BK7-SF5-D10.0-F20 10 20 12.3 -9.02 -25.23 3.6 1 17.625 BK7 SF5
ACH-BK7-SF5-D12.0-F25 12 25 15.346 -11.35 -31.92 4.2 1.3 22.286 BK7 SF5
ACH-BK7-SF5-D12.7-F25 12.7 25 15.596 -11.402 -31.05 4.3 1.3 22.251 BK7 SF5
ACH-BK7-SF5-D12.7-F30 12.7 30 18.535 -13.49 -37.84 4 1.3 27.36 BK7 SF5
ACH-BK7-SF5-D12.7-F40 12.7 40 25.23 -17.539 -48.75 3.4 1.3 37.778 BK7 SF5
ACH-BK7-SF5-D12.7-F50 12.7 50 31.26 -21.93 -62.37 3.1 1.3 47.992 BK7 SF5
ACH-BK7-SF5-D12.7-F60 12.7 60 37.33 -26.42 -75.86 2.8 1.3 58.127 BK7 SF5
ACH-BK7-SF5-D12.7-F75 12.7 75 46.77 -32.96 -94.62 2.6 1.3 73.227 BK7 SF5
ACH-BK7-SF5-D20.0-F65 20 65 40.09 -29.58 -83.59 6.3 2 60.868 BK7 SF5
ACH-BK7-SF5-D25.4-F60 25.4 60 37.33 -27.16 -75.86 7 2 55.565 BK7 SF5
ACH-BK7-SF5-D25.4-F120 25.4 120 73.28 -54.33 -159.96 4.2 2 117.103 BK7 SF5
ACH-BK7-F2-D12.7-F-25 12.7 -25 -15.6 13.09 44.16 3 2.67 -27.5 BK7 F2
ACH-BK7-F2-D12.7-F-40 12.7 -40 -24.45 17.97 66.6 3 2.34 -42.5 BK7 F2
ACH-BK7-F2-D25.4-F-50 25.4 -50 -31.19 24.89 85.31 3 4.22 -53.3 BK7 F2