Custom Built Aspheric Lens
Substrate Materials: CDGM, Schott, Ohara Glass; Single-Crystal Silicon; Fused Silica
Parameters
Specifications
Tolerances
Outer Diameter
10 mm – 250 mm
± 0.01 mm
Center Thickness
> = 1mm
± 0.02 mm
Wedge (TIR)
> 0.002 mm
0.010 mm
Asphericity (@50mm dia)
up to 5 mm
> 2 mm
Tolerance of Radius
0.01%
0.01%
Surface Figure, PV @633nm
λ/4
< λ/2
Surface Figure, RMS @633n
0.05 um
0.1 um
Slope Error
< 0.010° @0.5mm spacing
0.010°(0.5mm)
Roughness
0.5 nm RMS
< 1 nm RMS
Surface Quality
—
20 – 10 and 10 – 5
