Large Size Cylindrical Lenses

Material: BK7, K9 or Fused Silica or others optical glass
Diameter: ±0.1 mm
Tolerance: ±0.1 mm
Sphericity: 3(0.5)
Surface Quality: 40/20
Coating: with or without
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BK7, K9 or Fused Silica or others optical glass

Design Wavelength

visible light

Dimmensions(Square or Circle)

1 to 300mm

Surface Figure

N<3, dN<0.5 @632.8nm

Diameter Tolerance

+0/-0.1 mm

Thickness Tolerance

±0.1 mm

Focal Length



<3 arc minutes

Clear Aperture


Surface Quality

60/40 or 40/20 scratch and dig

Protective Bevel

0.1-0.5 mm x 45°

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