Plano-Concave Axicon, Conical Lens

Manufacturer's part number :

1-APC-2

Manufacturer Altechna

Altechna

Description :

Plano-concave axicon 1-APC-2 serie offer an Apex angle from 90° to 175° with a diameter size of 25.4mm. Plano-concave axicon has a plano surface in combination with a concave conical surface. Concave axicon produces a ring shaped image along the axis from a point light source (e.g. Gaussian laser beam). Due to specifics in fabrication process, a hole in the center of concave surface is needed. Diameter of the hole is typically 1 mm. Different coatings can be applied on the polished surfaces of axicons. When coated with HR coating, concave conical surface can be used as a conical mirror in some specific applications.

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    Features

  • Apex angle: 90° to 175°
  • Material: UVFS
  • Diameter:: 25.4mm
  • Thickness: 5mm
  • Diameter Tolerance: +0.0, -0.15 mm
  • Thickness tolerance: ±0.1 mm
  • Clear Aperture: >90%
  • Surface Quality: 40/20 S/D
  • Apex angle Tolerance: ±0.5°. Available down to +/-0.02°
  • Protective chamfers: <0,25 mm x 45 deg
  • Benefits

  • Produces a ring shaped image along the axis from a point light source
  • Available diameter up to 75 mm
  • Double Convex available
  • Various AR Coatings are available for all these lenses
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Spectral Range UV (150nm-400nm)  
VIS (400nm-700nm)  
NIR (700nm-3µm)  
Lenses type Axicon-Plano/Concave  

Axicon Plano-Concave

1-APC-2 Series
Apex Angle
Diameter (mm)
Thickness (mm)
1-APC-2-A254
90°
25.4
5
1-APC-2-B254
130°
25.4
5
1-APC-2-C254
140°
25.4
5
1-APC-2-D254
160°
25.4
5
1-APC-2-E254
170°
25.4
5
1-APC-2-F254
175°
25.4
5