bainaben

Lens

Aspheric lens

Aspheric lens

PRIMEX make asphere with custom diamond turned(CNC manufacturing) as well as with molded asphere.

 
Aspheric lens
Aspheric lens

Custom asphere tolerance:

Parameter Commercial (standard)
Effective Focal Length (EFL) ± 1%
Center Thickness (CT) ± 0.025 mm
Outer Diameter (OD) ± 0.015 mm
Wedge (arcmin) 4
Power/Irregularity (fringes) 3/0.5
Surface Roughness PV< 1 μm RMS<0.15μm
Surface Quality (scratch/dig) 40/20

*Manufacturability depends on size & shape of the optics, as well as production volume

Molded asphere tolerance:

Parameter Commercial (standard)
Effective Focal Length (EFL) ± 1%
Center Thickness (CT) ± 0.025 mm
Outer Diameter (OD) ± 0.015 mm
Wedge (arcmin) 4
Power/Irregularity (fringes) 3/0.5
Surface Roughness PV< 2 μm RMS<0.25μm
Surface Quality (scratch/dig) 60/40

*Manufacturability depends on size & shape of the optics, as well as production volume