Precision Aplanats

These Achromats are not only corrected for spherical aberration and axial color as the standard Achromats but also corrected for coma. This combination makes them Aplanatic in nature and allows for better optical performance. They are used as laser focusing objectives and in electro-optical and imaging systems.

Diameter Dia. Tolerance CT Tolerance Centering Irregularity Surface Quality Bevel
3.00-6.00 +0.00 / -0.10 ±0.2 3 - 5 arc min. 0.25 Waves 40-20 0.15 x 45°
6.01-25.00 +0.00 / -0.10 ±0.2 < 3 minutes 0.25 Waves 40-20 0.25 x 45°
25.01 - 50.00 +0.00 / -0.10 ±0.2 < 3 minutes 0.25 Waves 40-20 0.50 x 45°
>50.00 +0.05 / -0.10 ±0.2 3 - 5 arc min. 0.50 Waves 60-40 0.50 x 45°
Dimensions MM
Clear Aperture CA >= 90% of Diameter
Coating BBAR 450-650 nm (See Coating Chart for Available Options)
Design Wavelength 587.6nm
Focal Length Tolerance ±2%
Edge Thickness Reference
* All dimensions are in mm