Collimator Lens
Very high numerical apertures (NA=0.51).
AC256 is the ideal choice for collimating or focusing the light of a laser diode.
Lens Material: |
Hybrid aspherical polymer on glass lens |
Lens Diameter: |
Ø5.5 mm |
Center Thickness: |
3.7 mm |
Edge Thickness: |
2.41 mm |
Design Wavelength: |
650 nm |
Clear Aperture (CA): |
Ø4.4 mm |
Numerical Aperture (NA): |
0.51 |
Effective Focal Length (EFL): |
4.34 mm (with BK7 t=0.25mm cover glass) |
Back Focal Length (BFL): |
2.33 mm |
Axis Wave front Error (RMS): |
0.05 λ |
Field Radius: |
≧0.09 mm |
Transmittance: |
97% |
Storage Temperature: |
-40 to 85°C |
Operating Temperature: |
-30 to 85°C |