柱面透镜

柱面透镜

Cylindrical lenses focus or expand light in one axisonly. They can be used to focus light into a thin line in optical metrology,laser scanning, spectroscopic, laser diode, acousto-optic, and opticalprocessor applications. They can also be used to expand the output of a laserdiode into a symmetrical beam.
Specifications of  opticalcylindrical lenses: 

Material

BK7 or Fused Silica

Design Wavelength

632.8 nm

Design Index:

 Scott material

              BK7

n=1.5147±0.0005

              Fused Silica

n=1.45702±0.00005

Surface Figure

x: λ/2; y: 2λ

Diameter Tolerance

+0.00, -0.15 mm

Thickness Tolerance

±0.2 mm

Paraxial Focal Length

±2%

Centration

<3 arc minutes

Clear Aperture

>85%

Surface Quality

60-40 scratch and dig

Protective Bevel

0.25 mm x 45°

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