Achromatic Lenses

ACL-6.25-40M

1
Achromatic lens (MgF2 coated)
Estimate separately
Classification Achromatic lens (ACL)
Coating MgF2 coated
External form D(mm) φ6.25
f(mm) 40
Material N-BK7/N-SF5
Design Wavelength DWL 587.6nm

Product documentation

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Description

Achromatic lens consists of two optical components cemented together to form an achromatic doublet which is computer optimized to correct for on-axis spherical and chromatic aberrations.
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Specifications

Classification Achromatic lens (ACL)
Coating MgF2 coated
External form D(mm) φ6.25
f(mm) 40
B.f(mm) 38.46
t1(mm) 3.01
CT1(mm) 2.3
CT2(mm) 1
R1(mm) 25.05
R2(mm) -17.27
R3(mm) -49.33
Material N-BK7/N-SF5
Surface quality 40-20
Clear Aperture(mm) [Dia.] -1.0
Externals Tolerance(mm) 0/-0.10
Enter Thickness Tolerance(mm) ±0.2
Centering(mm) 3′～5′
Bevel MAX 0.25
Design Wavelength DWL 587.6nm
Focal Length Tolerance(mm) ±2％
Chromatic aberration correction wavelength C-line（656.3nm）、F-line（486.1nm）
Edge Thickness ET Reference
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Curve(FOR REFERENCE ONLY)

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Specification drawings(or pictures)

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