Precise, stocked Acylinder

Benefit from our attractive selection of aspheric cylinders with a RMSi surface form deviation smaller than 0.5 µm. a|Acylinders are made from high-index-glass and can be especially used for laser applications. They are now also obtainable with high-precision mountings and convince with the following specifications:


BeamTuning App

Discover our BeamTooling App and calculate important optical properties of StockOptics acylinders online.

App Features:

  • Illustration of a|Acylinder properties used at a wavelength other than the design wavelength
  • Calculation of effective focal length (EFL) and working distance (WD)
  • ... and further calculations of the BeamTuning range

The app is available in the Apple and Google App Stores.

Get it on Google Play

Download on the App Store

You can also use the web version for calculation.





10x10 – 50x50 mm




780 nm



Surface form deviationRMSi

<0.5 µm

EFL Tolerance

≤0.1 %

Surface Imperfections


Center Thickness Tolerance

± 0.05 mm

Clear aperture

> 90 %


The advantages of precision-machined acylinders combined with the cost advantages of series production: Acylinders from the StockOptics series can be ordered directly from stock in our webshop. Benefit from a fast availability and short delivery times.

asphericon manufactures coatings in the spectral range from UV to the near infrared range: from anti-reflective coatings to metallic layers and wavelength-specific filter coatings with reasonable delivery times and reliable service. Convince yourself of the high quality, durability and effectiveness of our optical coatings.

Our StockOptics acylinders are available in the webshop with the following standard coatings:

A-Coating: RMAX<1.0%, RAVG≤0.4%, 400-600 nm, AOI=0°
B-Coating: RMAX<1.0%, RAVG≤0.4%, 600-1050 nm, AOI=0°
C-Coating: RMAX<1.0%, RAVG≤0.4%, 1000-1600 nm, AOI=0°

The corresponding measured curves are available on request.

asphericon also offers a selection of optical design files (CodeV, etc.) for free download available in the webshop. Plan your individual setup and convince yourself of the many application possibilities of our a|Acylinder.

Precision polished acylinders with short delivery times.

asphericon Webshop

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