Based on high-end technologies asphericon manufactures axicons with surface shape deviations (RMSi) of up to 0.04 µm. Together with our customers, we develop and produce suitable solutions from a large selection of optical glasses, from prototypes to series production. Take advantage of individual custom solutions,optical coatings or the innovative variety of stocked axicons from the StockOptics product line. The latter are available with surface deviations of RMSi ≤ 0.07 µm in our webshop.

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In contrast to aspheric lenses, the shape of an axicon resembles a cone. Due to the conical shape of the axicon lens so-called bessel beams, ring-shaped beam profiles, can be generated. The diameter of the ring beam depends on the axicon angle and decreases as the distance between the axicon and image plane grows. The ring width remains constant.

Based on your individual specifications, our optical designers develop the right axicon - Thanks to the latest production and measuring technology, a high level of precision is guaranteed. Coated or uncoated, as an unmounted optical component or mounted axicon, almost all optically effective materials with accuracies of up to 200 nm global form errors (irregularities) or 40 nm RMSi are suitable for production using specially developed CNC-controlled grinding and polishing processes. You also benefit from the following specifications:

In combination with other axicons or lenses, various beam profiles can be generated, such as collimated ring beams and variable ring-shaped focal points.

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Discover our exclusive selection of off-the-shelf a|Axicons. They are convincing with surface form deviation of RMSi ≤0.07 µm and the following specifications:

The axicon is primarily used in the field of beam shaping and in various laser applications. A particular use is also the generation of non-diffractive Bessel-like beams. An area with almost constant intensity distribution, the length of which is defined by the angle and diameter of the axicon lens, is of interest here. Bessel beams are non-diffractive and ideal for applications in medicine, research, in measuring technology and for adjustments. Specifically, they find use e.g. in optical tweezers and in light sheet [fluorescence microscopy}(/en/solutions/applications/life-science/fluorescence-microscopy/).

In order to simplify alignment and achieve optimal imaging results, axicons from asphericon can also be precisely aligned using specially developed mounts. In addition, the mounted axicons, like all mounted optics from asphericon, can be easily screwed to other elements via a metric fine thread. Learn more about the benefits of asphericons mounted lenses.